Top 10 Gamma Horizon Alternatives for Your Business

Introduction

The Gamma Horizon phone system is one of the more established cloud phone solutions used by UK businesses today. Built on Gamma Horizon VoIP technology, it offers call handling, desk phone support, and basic contact centre functionality through a reseller-based model.

For many companies, the Gamma Horizon phone service works well in the early stages. However, as communication needs become more advanced, businesses often start reviewing Gamma Horizon pricing, flexibility, and feature depth to see if the platform still aligns with their growth plans.

AI Summary
As businesses expand, their communication needs tend to evolve beyond basic calling. Many teams begin exploring alternatives due to rising costs, limited customization, or the absence of modern tools like AI automation and unified communication. This shift has led growing companies to consider smarter, all-in-one platforms that are easier to manage, scale more effectively, and better support modern ways of working.

What is Gamma Horizon?

Gamma Horizon is a cloud-based business phone system that lets companies make and receive calls over the internet instead of traditional phone lines. The Gamma Horizon phone system is mainly used for call screening, call handling, basic call routing, voicemails, and desk or softphone calling.

The primary purpose of Gamma Horizon VoIP is to provide a reliable hosted phone service for small to mid-sized businesses, usually delivered through partners backed by Gamma Communications. It’s typically chosen by organisations that want a stable, traditional business phone setup rather than advanced or highly customisable communication tools.

Gamma Horizon Features

• Cloud-Based VoIP Calling: Cloud-Based VoIP Calling allows the Gamma Horizon phone system to operate entirely over the internet
• Desk Phones & Softphones: Desk Phones & Softphones let users make calls using Gamma Horizon phones or computer-based apps
• Inbound & Outbound Calling: Inbound & Outbound Calling supports everyday business calls through Gamma Horizon VoIP
• Call Forwarding: Call Forwarding redirects calls to mobiles, colleagues, or external numbers
• Call Routing Rules: Call Routing Rules send calls to the right team based on time or availability
• Hunt Groups: Hunt Groups distribute incoming calls evenly across multiple users
• Call Queues: Call Queues hold callers during busy times until an agent is available
• Basic IVR Menus: Basic IVR Menus allow callers to choose options using keypad selections
• Voicemail to Email: Voicemail to Email delivers voicemail recordings directly to inboxes
• Music on Hold: Music on Hold plays audio while callers wait in queues
• Call Transfer: Call Transfer enables users to move calls between team members
• Call Hold & Resume: Call Hold & Resume lets users pause and continue calls easily
• Number Management: Number Management supports multiple business numbers on one system
• Time-Based Call Handling: Time-Based Call Handling changes call flows during business hours

Gamma Horizon Pros

• Reliable Call Quality: Reliable Call Quality ensures clear and stable calls across the Gamma Horizon phone system
• UK-Focused Infrastructure: UK-Focused Infrastructure is built specifically for UK businesses and regulations
• Cloud-Based VoIP Platform: Cloud-Based VoIP Platform removes the need for traditional phone lines
• Scalable for Small Teams: Scalable for Small Teams allows businesses to add users as they grow
• Established Telecom Provider: Established Telecom Provider backing comes from Gamma Communications
• Partner-Delivered Service Model: Partner-Delivered Service Model provides local reseller support and setup

Gamma Horizon Cons

• Limited Customisation: Limited Customisation restricts how much businesses can tailor call flows and user settings
• Complex Admin Management: Complex Admin Management makes the gamma horizon phone system harder to manage as teams grow
• Extra Costs for Add-Ons: Extra Costs for Add-Ons can increase overall Gamma Horizon pricing for basic features
• Less Modern User Interface: Less Modern User Interface feels dated compared to Gamma Horizon alternatives
• Limited Native Integrations: Limited Native Integrations reduce flexibility compared to a modern Gamma Horizon competitor
• Scaling Can Be Frustrating: Scaling Can Be Frustrating when adding users or expanding teams
• Partner-Dependent Support: Partner-Dependent Support means Gamma Horizon customer support quality varies by reseller

Gamma Horizon Pricing

• Horizon Flex: ~£8–£12 per user / month
• Horizon Collaborate: ~£12–£18 per user / month
• Horizon Contact: ~£20–£35+ per user / month

Gamma Horizon Integrations

• CRM Systems
• Desk Phones
• Softphone Applications
• Call Recording Tools
• Contact Centre Software
• Reporting & Analytics Tools

Gamma Horizon Customer Support Channels

• Partner / Reseller Support
• Phone Support
• Email Support
• Online Help Portal
• Knowledge Base
• Service Desk

Gamma Horizon Ratings

No ratings are available. 

Gamma Horizon Reviews

No reviews are available. 

Why Do Businesses Seek a Gamma Horizon Alternative?

Many businesses choose the Gamma Horizon phone system because it feels like a safe, well-known option. But once teams start using it day to day, some realise that Gamma Horizon VoIP doesn’t always fit how they actually work, especially as the business grows or needs change. That’s when companies begin looking for a Gamma Horizon alternative.

Does Gamma Horizon Require Paid Add-Ons for Basic Features?

One common issue raised in the Gamma Horizon pros and cons is the need to pay extra for features many teams see as basic. This is especially noticeable with a gamma horizon contact centre setup, where costs can increase quickly. Because of this, businesses often search for alternatives to Gamma Horizon with clearer, more inclusive pricing.

Why Do Teams Find Gamma Horizon Difficult to Manage?

Even though Gamma Horizon customer support is usually helpful, everyday management can still feel complicated. Some teams struggle with reporting, system changes, or user setup. Over time, this pushes businesses to compare Gamma Horizon competitors and look for the best Gamma Horizon alternative that’s easier to use and manage.

Is Gamma Horizon Worth the Cost for Startups?

For startups, Gamma Horizon pricing can be hard to justify. While the Gamma Horizon phone service is stable, smaller teams often feel they’re paying a lot for features they don’t really need yet. When comparing Gamma Horizon pricing with options that are better than Gamma Horizon, startups often find simpler systems that cost less and still do everything they need.

Does Gamma Horizon Allow Enough Personalization?

Many Gamma Horizon reviews mention that customisation is limited. The main Gamma Horizon features work fine, but businesses that want flexible call flows or more control over how calls are handled can feel restricted. This is why many teams start looking at Gamma Horizon alternatives or platforms similar to Gamma Horizon that offer more freedom.

What Happens When Your Team Outgrows Gamma Horizon?

As a business grows, the Gamma Horizon phone system can start to feel harder to manage. Adding users, changing call routes, or updating settings can take more time than expected. In more than one Gamma Horizon review, growing teams mention that scaling becomes frustrating, which often leads them to look for a Gamma Horizon replacement.

What Features To Look For In A Gamma Horizon Alternative?

When businesses outgrow the Gamma Horizon phone system, they usually want something that feels simpler, more flexible, and more modern. A good Gamma Horizon alternative should remove daily friction, support growth, and give teams tools that actually help them work better.

AI-Powered Call Intelligence

A strong Gamma Horizon alternative should help teams understand calls without manual effort. AI-powered insights can highlight trends, key phrases, and call outcomes automatically. This makes it easier to improve sales and support conversations over time.

CRM-Ready Phone System Integrations

Many businesses moving away from Gamma Horizon VoIP want deeper CRM connections. Calls, notes, and follow-ups should sync automatically so teams don’t waste time on admin. This creates a smoother workflow and better visibility across teams.

Work-From-Anywhere Mobile VoIP

A better than Gamma Horizon solution allows staff to work from anywhere without losing call quality. Mobile and desktop apps should offer the same experience as office phones. This flexibility supports remote and hybrid teams without extra setup.

Intelligent Call Routing & Smart IVR

Companies replacing the gamma horizon phone system often want smarter call handling. Intelligent routing ensures callers reach the right person faster based on rules or availability. This reduces wait times and improves the customer experience.

Built-In Security, Compliance & Encryption

A proper Gamma Horizon replacement should include security by default. Calls should be encrypted, recorded securely, and compliant with industry standards. Businesses shouldn’t need to pay extra for basic protection.

Instant Click-to-Call Dialing

Click-to-call tools help teams move faster during busy days. Many Gamma Horizon competitors make it easy to dial directly from CRMs, emails, or websites. This reduces manual errors and improves response speed.

Actionable Call Analytics & Reporting

A good Gamma Horizon alternative turns call data into useful insights. Managers should quickly see call volumes, performance trends, and outcomes. This helps teams improve without needing complex reports.

Fast, Hassle-Free Number Porting

Switching from Gamma Horizon VoIP should be simple and low risk. Fast number porting ensures businesses keep their existing numbers with minimal downtime. This makes the transition smoother for both teams and customers.

Team Messaging & Internal Collaboration

Many alternatives to Gamma Horizon include built-in team messaging. This allows quick internal communication without switching tools. It keeps conversations organised and improves teamwork.

Voicemail Transcription & Text Alerts

Voicemail transcription saves time by turning messages into readable text. Some Gamma Horizon features limit how voicemails are accessed. Text or email alerts ensure no message is overlooked.

Live Call Monitoring, Whisper & Coaching

For growing teams, live call monitoring is essential. When replacing a gamma horizon contact centre, managers often want whisper and coaching tools to support agents in real time. This improves performance without disrupting calls.

Unified Experience Across All Devices

A Gamma Horizon competitor should feel consistent across all devices. Whether on mobile, desktop, or browser, users should see the same layout and features. This reduces confusion and training time.

High-Speed Power Dialers for Sales Teams

Sales teams need tools that help them work faster without burnout. Many solutions similar to Gamma Horizon include power dialers that increase call volume efficiently. This helps teams stay productive while maintaining call quality.

Branded Caller ID for Better Answer Rates

Branded caller ID helps businesses look more professional. Unlike basic Gamma Horizon phone service setups, showing your company name builds trust. This often leads to higher answer rates.

Smart Call Queues & Callback Handling

Smart call queues improve customer experience during busy periods. A Gamma Horizon replacement should allow callbacks instead of forcing customers to wait. This reduces frustration and missed opportunities.

Call Notes, Tags & Follow-Up Tracking

Call notes and tags help teams stay organised. Many Gamma Horizon reviews mention limited follow-up tracking. Built-in tools ensure nothing slips through the cracks after a call ends.

Crystal-Clear HD Voice Quality

Call quality is non-negotiable for businesses. A solution better than Gamma Horizon should deliver consistent HD voice with minimal drops. Clear audio improves professionalism and understanding.

Secure Call Recording & Storage

Call recordings should be easy to access and securely stored. Some Gamma Horizon pricing plans restrict recording features. A modern system includes secure storage without hidden costs.

10 Best Gamma Horizon Alternatives

• Emitrr 
• OpenPhone
• RingCentral
• MightyCall
• Dialpad
• Ooma
• Nextiva
• GoTo Connect
• JustCall
• 8×8

1. Emitrr: Best for VoIP + texting / customer engagement workflows

Emitrr Overview

Emitrr is an all-in-one communication platform built for small and growing businesses that want a simpler, more modern Gamma Horizon alternative. Instead of juggling multiple tools, teams can manage calls, texts, appointments, and follow-ups from one clean, easy-to-use dashboard, making everyday communication far more efficient.

With features like voicemail-to-text, smart call routing, automated text reminders, and HIPAA-compliant messaging, Emitrr goes well beyond basic VoIP functionality. It’s especially well suited for healthcare, wellness, and service-based businesses that need reliable communication without added complexity. Easy to set up and designed to reduce no-shows and save time, Emitrr helps teams stay connected, organised, and focused on customers.

Emitrr Key Features

AI Agent – Built to Match Your Business Needs

With Emitrr, you can create a fully customizable AI agent that speaks and responds exactly the way your business does. Build it from the ground up or start with an industry-specific template, either way, you stay in full control.

You decide:

• How it interacts: through SMS, phone calls, or both
• What it says: using your own prompts, scripts, and responses
• Where it gets information: FAQs, service details, or internal knowledge bases
• What it does: books appointments, sends follow-ups, and responds to missed calls automatically. 

AI VoIP Features

• Auto Dialer: The auto dialer speeds up outreach by removing manual dialing, letting staff place calls instantly with one click.
• AI SMS Nudges: Instead of keeping callers waiting, AI SMS nudges give them the option to switch to text, keeping the conversation alive without long holds.
• Smart Phone Trees: Smart phone trees replace clunky button menus with intelligent guidance, smoothly directing callers to the right destination.
• Custom Extensions: Assign unique call extensions to team members, complete with personalized settings tailored to their schedules and roles.
• AI Call Handling: With AI call handling, routine calls like FAQs, appointments, or cancellations are managed instantly. It can also be customized to handle more complex conversations when needed.
• AI Call Routing: AI call routing automatically identifies whether a caller is new or existing and connects them to the right person or department. No more manual transfers or wasted time.
• AI Data Collection: AI data collection gathers details like demographics, insurance, or history before staff even answer, making calls faster and smoother.
• Dashboards & Reports: Dashboards and reports show answered, missed, or dropped calls at a glance, helping you spot issues and improve performance.
• Missed-Call-to-Text: If a call goes unanswered, missed-call-to-text sends an automatic SMS follow-up so patients never feel ignored.
• Call Pop: Call pop displays caller details instantly on screen, allowing staff to greet patients by name and work more efficiently.
• EHR/EMR/PMS Integrations: Integrations with EHR, EMR, and PMS systems connect your phone system with your existing software for seamless workflows.
• AI Call Forwarding: AI call forwarding uses context to decide where a call should go, routing VIPs to priority lines or escalating urgent calls without delay.
• AI Call Screening: Block out spam and robocalls with AI call screening, ensuring your team only answers genuine calls that matter.
• AI Call Recording: AI call recording stores every conversation, flags potential compliance issues, and creates a searchable library for training and quality checks.
• AI Call Queues: AI call queues reduce long hold times by solving simple requests automatically and sending updates if someone hangs up.
• AI Summaries & Transcripts: AI summaries and transcripts turn lengthy conversations into clear notes and accurate call records, saving your team time.

Emitrr Pros

• Reliable Uptime: Enjoy peace of mind with a 99.99% uptime guarantee that keeps your communication consistent and interruption-free.
• User-Friendly Interface: Navigate effortlessly with a simple, intuitive dashboard that’s easy for anyone to use, with no steep learning curve.
• HD Call Quality: Make and receive calls with crisp, professional audio for a better customer experience.
• Fast & Easy Setup: Get started quickly with streamlined onboarding, minimal setup time, and helpful training.
• Seamless Integrations: Connect easily with your existing CRM, EHR, or PMS tools to keep workflows smooth and efficient.
• Affordable Pricing: Choose from flexible, cost-effective plans designed to fit the needs of small and growing businesses.
• All-in-One Communication: Manage calls, texts, and reviews in one unified platform; no need to juggle multiple tools.

Emitrr Cons

• Evolving VoIP Capabilities: Some advanced VoIP features are still being improved.

Emitrr Pricing

Emitrr offers different pricing plans for different capabilities. For VoIP, there are 2 pricing plans – Standard and Professional. 

Name of the plan	Pricing if paid annually	Pricing if paid monthly
Standard	$20 per user per month	$25 per user per month
Professional	$25 per user per month	$30 per user per month

Key features of Standard Plan: 

• Calling (1000 mins/user)
• HD Voice
• Call Hold Music
• Call Recording (manual)
• Call Queue Groups
• Call Extensions
• Call Routing (During and After Hours)
• Call Transfer
• Call Forwarding
• Number Porting
• Contact Sync
• Set personal working hours
• Mobile App

Key features of Professional Plan: 

Everything in Standard plus

• Call Transcription
• IVR (Interactive Voice Response)  / Call Tree
• Call Recording (automated)
• Missed Call Auto Text
• Call Conference
• Voicemail Transcription
• HIPAA Compliance
• Access Management 

Emitrr Integrations

Emitrr offers 500+ integrations across different industries such as dental, recruiting, real estate, etc. with tools like:

• MailChimp
• Denticon
• AthenaHealth
• Zapier
• Salesforce
• HubSpot

Emitrr Reviews & Ratings

Emitrr has a solid 5/5 star rating on Capterra and here’s what customers are saying about it: 

“You have it all integrated into one platform, the signatures, the amount of characters, you can attach files, send photos. You are able to create and send forms. Unlimited amount of things we can use and take advantage of.”

“I LOVE Emitrr. The support you get is wonderful, the app is easy to use and they have been incredibly responsive. As a small business, we needed a messaging platform that wouldn’t break the bank and this meets all our needs (and then some) without making us feel overwhelmed.”

Source: Capterra

Emitrr Support Channels

• Live chat: Chat with Emitrr’s live representatives
• Phone: Call Emitrr at +1 (210) 941-4696
• Email: Send email to Emitrr’s support team at support@emitrr.com
• Knowledge base
• FAQs/forum
• SMS

2. OpenPhone: Best for simple business calling & texting

OpenPhone Overview

OpenPhone is a modern VoIP platform built for startups, small businesses, and remote teams. It brings voice calling, text messaging, and collaboration tools into a clean, easy-to-use interface across desktop, mobile, and web. For growing companies that feel limited by traditional systems, OpenPhone is often seen as a flexible Gamma Horizon alternative.

OpenPhone Key Features

• Virtual Receptionist: Automatically answers incoming calls and routes them to the correct person or team.
• Smart Call Routing: Distributes calls efficiently across departments or staff members.
• Call Outcome Tracking: Allows agents to log call results to support follow-ups and performance analysis.
• Detailed Call Logs: Maintains complete records of call dates, times, and durations for easy reference.
• Live Call Monitoring: Enables managers to listen to active calls for coaching and quality assurance.
• Call Recording: Securely records conversations for compliance, training, and performance reviews.

OpenPhone Pros

• Cost-Effective with Strong Features: Delivers a robust feature set at a competitive price point.
• Easy Business Texting: Reliable and simple-to-manage SMS messaging for teams.
• Streamlined Number Management: Makes organizing and managing multiple business numbers straightforward.
• Clear Call Quality & Intuitive App: High-quality audio paired with a clean, user-friendly mobile and desktop experience.

OpenPhone Cons

• Onboarding & Support Challenges: Some users report setup difficulties and inconsistent customer support.
• Restrictive Service Policies: Cancellation and support terms may feel limiting for certain businesses.
• Duplicate Notifications: Automated alerts may occasionally be sent multiple times.
• Number Verification Limitations: Some services do not accept OpenPhone numbers, requiring the use of personal numbers.

OpenPhone Pricing

OpenPhone offers different pricing options:

• Starter: $15 Per user/per month
• Business: $ 23 Per user/per month
• Enterprise: Custom Pricing

OpenPhone Integrations

OpenPhone integrates with other business software and apps which include, but are not limited to: 

• Hubspot
• Gong
• Google Contacts
• Salesforce
• Slack 

OpenPhone Reviews

“If you want a reliable long-term platform, this isn’t the one. They will shut you down in a heartbeat based on speculation. Customer service/retention means nothing to this company at all. I set it up for business use to contact and follow up with my customers however, that only lasted less than 2 days. Don’t be fooled by the price, you pay for what you get. I wouldn’t recommend this platform to my worst enemy…IT ABSOLUTELY SUCKS!!!!”

“Do NOT waste your time or business with OpenPhone – I’ve lost a lot of money“

Source: Capterra 

OpenPhone Customer Support Channels

• Knowledge Base
• Phone Support
• Email Support
  

3. RingCentral: Best for simple business calling & texting

RingCentral Overview

RingCentral is a widely recognised Gamma Horizon alternative that combines business calling, messaging, and video meetings into one flexible cloud communication platform. With AI-powered call insights, built-in team collaboration tools, and seamless app integrations, it supports the way modern teams work.

RingCentral Key Features

• Cloud VoIP Calling: A full cloud phone system with intelligent routing, call forwarding, and voicemail-to-email for flexible call handling.
• HD Video Meetings: High-quality video conferencing with screen sharing, breakout rooms, and webinar functionality built in.
• Team Collaboration Tools: Real-time messaging, file sharing, and task coordination to keep teams connected beyond calls.
• Call Flip & Live Monitoring: Move active calls between devices instantly, while managers can listen in live for coaching or support.
• Business Texting (SMS/MMS): Send and receive text and multimedia messages directly from the RingCentral app.

RingCentral Pros

• True Unified Communications Platform: Combines calling, messaging, video meetings, and contact center tools in one ecosystem.
• Built for Scale: Designed to support everything from small teams to large, distributed enterprises.
• Extensive Integration Library: Works with 200+ applications including Salesforce, Microsoft Teams, HubSpot, and Slack to streamline workflows.

RingCentral Cons

• Complex Setup for Non-Technical Teams: Initial configuration can feel overwhelming without IT support.
• Limited Flexibility for Niche Integrations: Custom or lesser-known tools may not integrate as smoothly.
• Inconsistent Support Experience: Despite 24/7 availability, some users report delayed responses or unresolved issues.
• Occasional Call Quality Fluctuations: Dropped calls or audio glitches may occur during peak usage periods.
• Basic Reporting Capabilities: Analytics may fall short for businesses needing deeper performance insights.
  

RingCentral Pricing

RingCentral offers a range of business communication plans, with pricing based on features and the number of users. Here’s a breakdown of the primary pricing plans for RingCentral MVP (Message, Video, Phone):

1. Essentials – Starting at $19.99 per user/month (limited to 20 users)
2. Standard – Starting at $27.99 per user/month
3. Premium – Starting at $34.99 per user/month
4. Ultimate – Starting at $49.99 per user/month

RingCentral Integrations

RingCentral offers API and also integrates with 300+ options, including:

• HubSpot
• Google
• Zendesk
• And others

RingCentral Reviews

“It could be operator error, but it sometimes does not alert me right away when I miss a call/receive a voicemail on my cell phone.”

“I love how you can forward your calls to another number within the app. I love how ring central has the ability to transcribe your voicemails into text emails.”

Source: Capterra

RingCentral Support Channels

• Knowledge Base
• Chat
• Email/Help Desk
• Phone Support
• 24/7 (Live rep)
• FAQs/Forum

4. MightyCall: Best for cloud call center

MightyCall Overview

MightyCall is a cloud-based VoIP solution built for small businesses that need simple, reliable communication without complexity. It lets teams manage calls, text messages, and voicemails from a smartphone, laptop, or desktop, making it a practical Gamma Horizon alternative for companies that don’t want to invest in extra hardware or complicated setups.

MightyCall Key Features

• Professional Business Numbers: Provides local, toll-free, and vanity numbers to help businesses appear credible and established.
• VoIP-Based Calling: Supports high-quality internet calling across devices without relying on traditional phone systems.
• Call Forwarding: Seamlessly routes calls to mobile phones, landlines, or team members to prevent missed calls.
• Virtual Receptionist: Custom greetings and automated menus guide callers to the correct department or extension.

MightyCall Pros

• Quick & Easy Setup: Can be launched within minutes with no technical expertise required.
• Built for Small Businesses: Focuses on essential features tailored for small teams without unnecessary complexity.
• Cost-Effective Plans: Offers flexible pricing with strong value, including unlimited calling and texting options.
• Remote-Work Friendly: Cloud-based and mobile-ready for remote, hybrid, and office-based teams.
• Reliable Customer Support: Access to responsive support through chat, email, and a comprehensive help center.
  

MightyCall Cons

• Limited Scalability: Not designed for large teams, high-volume calling, or enterprise call centers.
• No Native Video Conferencing: Requires third-party tools like Zoom for video meetings.
• Basic Integrations: Supports common CRMs, but lacks deep or advanced integration capabilities.
• Missing Advanced Call Center Features: Does not include tools like predictive dialing or call coaching.
  

MightyCall Pricing

There are four MightyCall pricing options to choose from: 

• Core: $15
• Pro: $23
• Power: $30 
• Enterprise: Custom-made plans 

MightyCall Integrations

• HubSpot
• Salesforce
• Zoho CRM
• Zapier
• Google Contacts
• Microsoft Outlook

MightyCall Reviews

“Missing important call center functionality, and poor support”

“Pleased With MightyCall”

Source: Capterra

MightyCall Support Channels

• Live Chat Support
• Email Support
• Help Center / Knowledge Base
• Support Ticket System
• Onboarding Assistance (for new users)
  

5. Dialpad: Best for AI-enhanced voice & analytics

Dialpad Overview

Dialpad is a modern communication platform that combines voice calls, video meetings, and team messaging into one easy-to-use system. It’s designed for teams that want to work from anywhere without relying on outdated tools, making it a strong Gamma Horizon alternative for growing businesses.

Dialpad Key Features

• AI-Powered Voice Intelligence: Provides real-time call transcription and actionable insights, reducing manual note-taking.
• Unified Communications Platform: Combines voice calling, messaging, and video meetings into one streamlined interface.
  
• Voicemail Transcription: Converts voicemails into text for faster review and easier message management.
• Smart Call Routing & Queues: Automatically routes calls to the right agent or team to shorten wait times and improve customer experience.

Dialpad Pros

• User-Friendly Interface: Modern, intuitive design that’s easy for both new and experienced users.
• Automatic Call Transcripts: AI-generated notes simplify follow-ups, documentation, and record-keeping.

Dialpad Cons

• Limited Call Center Depth: Lacks advanced queue controls and fully customizable reporting tools.
• Scaling Can Be Time-Consuming: Larger teams may require manual setup, increasing deployment effort.
• Internet-Dependent Call Quality: Audio performance can drop with weak or unstable connections.
• Restricted International Coverage: Fewer global calling options compared to enterprise competitors.
• Higher Cost for Small Teams: Premium features can be expensive for startups or budget-focused businesses.

Dialpad Pricing

Dialpad Pricing plans are as follows: 

• Standard: $15/user/month
• Pro: $25/user/month
• Enterprise: Custom

Dialpad Integrations

Dialpad integrates with a bunch of CRM tools, including:

• Salesforce
• HubSpot
• Zendesk
• Pipedrive
• Zoho

Dialpad Reviews

“I do wish there were more permission settings to add a user (employee) in the field and only allow them to make outgoing or incoming phone calls. Also, I think pricing should be less for a user who is out in the field who only needs limited functions.”

“The Dialpad support team has always been very helpful and responsive. It is really nice to have a reasonably priced phone system that is very simple to use and robust.”

Source: Capterra 

Dialpad Customer Support Channels

• Live chat
• Help Center
• Call
• FAQs

6. Ooma: Best for affordable small business VoIP calling

Ooma Overview

Ooma is a widely used Gamma Horizon alternative that provides a cloud-based VoIP phone system to improve business communication and simplify everyday operations. Built for teams that want smoother collaboration and better customer interactions, Ooma offers a range of practical features. However, businesses should still weigh its advantages and limitations carefully to decide if it’s the right fit for their needs.

Ooma Key Features

• Call Center Capabilities: Offers call routing, agent monitoring, and queue management to improve call handling and support efficiency.
• Conference Calling: Enables real-time group calls for internal coordination and client discussions.
• Call Recording: Captures calls for training, compliance, and quality assurance purposes.
• Caller ID: Displays caller information to help teams identify and prioritize incoming calls.

Ooma Pros

• Cost-Effective International Calling: Competitive per-minute rates make it suitable for businesses with global calling needs.
• Complimentary Toll-Free Number: Includes a free 800 number with business plans to enhance brand credibility.
• Fast & Simple Setup: Easy deployment with minimal technical effort required.

Ooma Cons

• Limited Advanced Capabilities: May not meet the needs of growing teams that require more robust VoIP or call center tools.
• Missing Essential Call Features: Lack of call hold and transfer can disrupt workflows and customer interactions.
• Unintuitive Interface: Dashboard navigation can feel dated and inefficient.
• Inconsistent Customer Support: Users report delayed responses and mixed-quality support experiences.

Ooma Pricing

Ooma offers a few different pricing plans for its business phone solutions, catering to small and medium-sized businesses. Here’s a breakdown of the main plans:

• Ooma Office – $19.95 per user/month
• Ooma Office Pro – $24.95 per user/month
• Ooma Office Pro Plus – $29.95 per user/month

Ooma Integrations

Ooma can be integrated with many third-party tools, including:

• Salesforce
• Intuit quickbooks
• HubSpot
• Zoho
• And more!

Ooma Reviews

“Sometimes the call quality is horrible or just flat out unable to connect and it seems they have a lot of outages.”

“I love the customer service the best!!!! They are always on top of their game, and willing to go above and beyond to help you out.”

Source: Capterra

Ooma Customer Support Channels

• Chat
• Email/Help Desk,
• FAQs/Forum
• 24/7 (Live rep)
• Phone Support

7. Nextiva: Best for full business communication

Nextiva Overview

Nextiva is a well-known Gamma Horizon alternative that brings voice, video, SMS, and reputation management together in one unified platform. It helps businesses stay connected with customers while keeping daily operations organised and efficient. By combining multiple communication channels in one place, Nextiva enables teams to deliver smooth, professional experiences as they grow.

Nextiva Key Features

• Auto Attendant (IVR): Professionally greets callers and automatically directs them to the right department without manual involvement.
• Call Routing & Queues: Handles high call volumes intelligently, ensuring customers reach the correct team with minimal wait times.
• Call Forwarding & Transfers: Allows calls to move effortlessly between devices and team members, keeping conversations uninterrupted.
• Voicemail-to-Email & Transcription: Sends voicemails straight to email or converts them into text for quick, convenient review.
• Number Porting: Lets businesses switch to Nextiva while retaining their existing phone numbers.
• Local & Toll-Free Numbers: Offers local and toll-free options to strengthen brand presence and customer trust.

Nextiva Pros

• Centralized Business Communication: Brings calling, messaging, email, and customer engagement into one unified platform.
• Reputation Management Built In: Simplifies collecting, monitoring, and responding to customer reviews from a single dashboard.
• Adaptable to Different Workflows: Supports CRM integrations, templates, and flexible configurations across teams.
• Consistent Support Experience: Reliable customer assistance helps businesses maintain smooth day-to-day operations.

Nextiva Cons

• Not Budget-Friendly for Small Teams: Pricing may feel excessive for smaller businesses with basic communication needs.
• Basic SMS Automation: Automation features are limited and may not meet advanced or multi-step messaging requirements.
• Limited Review Site Coverage: Reputation management integrates with only a handful of major review platforms.

Nextiva Pricing

Nextiva offers a few different VoIP and business communication plans, with pricing based on features and the number of users. Here’s an overview of Nextiva’s main plans:

• Essential – Starting at $23.95 per user/month (billed annually, for 20-99 users)
• Professional – Starting at $27.95 per user/month (billed annually, for 20-99 users)
• Enterprise – Starting at $37.95 per user/month (billed annually, for 20-99 users)
• Ultimate – Starting at $67.95 per user/month (for comprehensive needs, with custom features)

Nextiva Integrations

Nextiva integration options include: 

• HubSpot
• Salesforce
• Zoho
• Workbooks
• Act!
• Goldmine

Nextiva Reviews

“Service is spotty, Calls get dropped, Phones disconnect from service, Voice Packets get lost. Forever ongoing contract auto-renewals without notifications to the client.”

“The phone system was with a lot of technical problems. Auto attendant not working, CRM not working, SMS not working.”

Source: Capterra

Nextiva Customer Support Channels

• Phone Support
• Email/Help Desk
• FAQs/Forum

8. GoTo Connect: Best for VoIP + collaboration features

GoTo Connect Overview

GoTo Connect is a reliable Gamma Horizon alternative that combines business calling, video meetings, and team messaging into one easy-to-manage platform. It’s designed for companies that want dependable communication without unnecessary complexity, making it a solid option for teams looking beyond the Gamma Horizon phone system.

GoTo Connect Key Features

• HD VoIP Calling: Provides clear, high-definition voice calls over the internet, eliminating the need for traditional landlines.
• Local & Toll-Free Numbers: Lets businesses acquire or port local and toll-free numbers to expand customer accessibility.
• Smart Call Routing & Auto Attendant: Uses customizable call flows to automatically route callers to the right team or department.
• Call Forwarding & Transfers: Supports seamless call forwarding and transfers to internal users or external numbers.
• Call Queues with Hold Music: Manages high call volumes with organized queues, professional hold music, and announcements.

GoTo Connect Pros

• Unified Communication Solution: Combines calling, video meetings, and team messaging in one platform.
• User & Admin Friendly: Simple interface that’s easy for employees to adopt and straightforward for admins to manage.
• Reliable Call Performance: Delivers stable, consistent audio quality, even during peak usage or remote work.

GoTo Connect Cons

• Costly for Small Teams: Pricing may feel high for businesses that only need basic calling features.
• Limited SMS Capabilities: Text messaging tools lack advanced automation and campaign functionality.
• Occasional App Stability Issues: Mobile and desktop apps may lag or freeze during heavy usage.
• Basic Contact Center Features: Does not include advanced tools typically found in full-scale contact center platforms.

GoTo Connect Pricing

GoTo Connect pricing plans offer: 

• Connect Phone System – $26 per user/month
• Connect CX – $34 per user/month
• Connect Contact Center – $80 per user/month

GoToConnect Integrations

• Microsoft Teams
• Salesforce
• Google Workspace
• Slack
• Zendesk
• Zoho CRM
• Zapier
• Microsoft Outlook
• Microsoft 365
• Google Calendar
• Google Contacts

GoTo Connect Reviews

“Perfect Product for All-in-out”

“Poor choice of phone system”

Source: Capterra

GoTo Connect Customer Support Channels

• Help Center
• Live Chat Support
• Phone Support
• Email Support
• Community Forum
• Knowledge Base
• Ticket Submission System
  

9. JustCall: Best for AI-powered calling

JustCall Overview

JustCall is a practical Gamma Horizon alternative built for sales and support teams that want better visibility and control over customer communication. This cloud-based VoIP phone system lets businesses handle calls, send text messages, and automate everyday workflows from a single, easy-to-use platform.

JustCall Key Features

• Smart Call Distribution: Routes inbound calls to the most relevant agent or department automatically, helping teams respond faster and cut down wait times.
• Call Recording: Automatically records conversations for compliance, performance reviews, and agent coaching.
• IVR System: Guides callers through interactive menus so they reach the right team without manual intervention.
• Automated Text Messaging: Enables SMS reminders, follow-ups, and notifications, reducing repetitive manual outreach.

JustCall Pros

• Fast, Hassle-Free Setup: Designed for quick onboarding with an intuitive interface that doesn’t require technical expertise.
• Deep CRM Connectivity: Integrates smoothly with leading CRMs, keeping calls, texts, and customer data centralized.
• Affordable for Small Teams: Pricing is practical for startups and growing sales or support teams.
• Global Coverage: Provides international phone numbers with voice and SMS support across multiple regions.
• Accessible Support: Customer support is available via phone, email, and live chat.

JustCall Cons

• Variable Call Quality: Call performance may fluctuate, particularly on weaker or unstable internet connections.
• Restricted SMS Automation on Basic Plans: Advanced texting workflows are reserved for higher-tier subscriptions.
• No Free Tier: The lack of a free plan can be limiting for very small teams or early-stage businesses.

JustCall Pricing

JustCall Pricing plans offer the following:  

• Essentials: $29/user/month
• Team: $39/user/month
• Pro: $69/user/month
• Business: Custom pricing

JustCall Integrations

• HubSpot
• Salesforce
• Zoho CRM
• Pipedrive
• Slack
• Zapier
• Freshdesk
• Intercom
• Zendesk

JustCall Reviews

“Amazing telephony solution for small businesses”

“Excellent solution and excellent customer support”

JustCall Customer Support Channels

• Live Chat
• Email Support
• Phone Support
• Help Center & Documentation

10. 8X8: Best for unified communications

8X8 Overview

8×8 is a unified communications platform that combines cloud-based calling, video meetings, team messaging, and contact centre tools into one system. It’s designed for businesses that want everything in one place instead of managing separate tools, making it a well-known Gamma Horizon competitor. With strong security standards, global reach, and dependable call quality, 8×8 works well for companies with multiple teams or locations.

8×8 Key Features

• Automated Call Routing: Automatically greets callers and routes them to the correct team or agent, reducing missed calls and improving efficiency.
• Call Center Tools: Advanced monitoring, reporting, and performance management features to optimize agent productivity and customer experience.
• Conference Calling: Simple multi-participant calling that supports smooth collaboration across teams and locations.

8×8 Pros

• Easy & Flexible Setup: Quick deployment and simple management for businesses of all sizes.
• Reliable Call Quality: Consistent, clear voice quality for both local and long-distance calls.
• All-in-One Platform: Combines voice, messaging, analytics, and business tools in one solution.
• Strong Mobile Support: Works seamlessly across mobile apps and VoIP devices for on-the-go communication.

8×8 Cons

• Billing Inconsistencies: Users report unexpected or duplicate charges.
• Unresolved Payment Issues: Unauthorized charges may continue despite follow-ups.
• Generic Support Responses: Automated replies that often lack issue-specific solutions.
• Limited Customer Support Effectiveness: Problems may be misdiagnosed or insufficiently resolved.
• Hardware Blame Shifting: Technical issues are sometimes attributed to customer devices.
• Overall Poor Support Experience: Many users find support interactions frustrating and unproductive.
  

8X8 Pricing

• This phone cloud service offers different pricing packages. The basic 8X8 pricing package starts at $24 per month for limited features. 

8X8 Integrations

This phone cloud system offers various integration options include: 

• Slack
• Microsoft Teams
• HubSpot CRM
• Freshdesk
• Zendesk Suite
• ServiceNow
• Microsoft Outlook
• Copper

8X8 Ratings

• Capterra:  4.0 / 5
• G2:  4.0 / 5

8X8 Reviews

“Horribly unreliable, inconsistent and no one is responding to our emails. The system its self worked okay without the integration but the inaccurate billing is wild to me.”

“Good VOIP phone service, but support has turned to garbage and apps are laggy”

Source: Capterra

8×8 Support Channels

• Support Portal
• Live Chat
• Phone Support
• Community Forum
• Email Support
• Knowledge Base
• Social Media Support

What Makes Emitrr The Best Gamma Horizon Alternative?

Businesses that outgrow the Gamma Horizon phone system often want more than just basic calling. Emitrr stands out as a modern Gamma Horizon alternative by combining AI, automation, and communication tools into one platform that’s easier to use, easier to scale, and better suited for fast-moving teams.

AI-Optimized VoIP Calling

Emitrr’s AI-optimized VoIP calling focuses on consistent call quality and performance. Unlike Gamma Horizon VoIP, the system actively adapts to network conditions to keep calls clear. This is especially useful for remote teams and high-volume call environments.

Smart AI Virtual Assistant

The Smart AI Virtual Assistant helps handle common customer interactions automatically. Compared to the traditional Gamma Horizon phone service, this reduces manual workload and ensures calls and messages are handled even when teams are busy or unavailable.

Unified Calling, Messaging & Chat

Emitrr brings calls, SMS, and chat into one unified workspace. Many Gamma Horizon alternatives still separate these tools, but Emitrr keeps everything in one place, making it easier for teams to stay organised and responsive.

Intelligent Call Handling & Routing

Emitrr uses intelligent routing to send calls to the right person based on rules, availability, or priority. This feels far more flexible than the Gamma Horizon phone system, especially as teams grow and call volumes increase.

Professional Business Texting

With professional business texting, teams can communicate with customers using their business number. This fills a major gap for companies replacing Gamma Horizon, where SMS capabilities are often limited or missing.

Centralized Conversation History

Emitrr stores calls, texts, and messages in one shared timeline. This solves a common issue mentioned in Gamma Horizon reviews, where communication data is spread across different tools or users.

Complete All-in-One Communications Suite

Emitrr works as a true all-in-one platform, not just a phone system. For businesses looking for a Gamma Horizon replacement, this reduces the need for extra software and simplifies daily operations.

Extensive Integrations with 1,000+ Tools

Emitrr integrates with over 1,000 CRMs and business apps. This level of integration goes far beyond most Gamma Horizon competitors and allows teams to automate workflows easily.

Clear, Predictable Pricing

Emitrr offers transparent pricing with features included upfront. Unlike Gamma Horizon pricing, businesses don’t have to worry about constant add-ons as their needs grow.

Easy-to-Use, Intuitive Interface

Emitrr is designed for everyday users, not telecom experts. This makes setup, training, and management far simpler than many Gamma Horizon alternatives, especially for non-technical teams.

Which Industries Are Catered By Emitrr?

Emitrr helps businesses communicate faster, work smarter, and deliver better customer experiences, without adding operational complexity. Across industries, teams use Emitrr to centralize conversations, automate routine tasks, and stay responsive at scale.

Healthcare

Healthcare practices rely on HIPAA-compliant texting and VoIP to reduce call volume and administrative load. Automated appointment reminders, follow-ups, and integrations with tools like Denticon and Dentrix improve patient engagement while keeping communication secure.

Wellness

Spas, salons, gyms, and wellness centers use Emitrr to automate bookings, reminders, and feedback collection via SMS and email. This lowers no-shows, strengthens client relationships, and keeps daily operations running smoothly.

Education

Schools and colleges use Emitrr for bulk messaging, two-way communication, calling, and real-time alerts. It keeps students, parents, and staff informed about schedules, announcements, and events, improving transparency and engagement.

Legal Services

Law firms use secure messaging, VoIP calls, and automated appointment notifications to protect sensitive client information while reducing manual coordination and follow-ups.

Real Estate

Agents and brokers streamline scheduling, reminders, and feedback collection with Emitrr, ensuring clear communication throughout buying, selling, and renting journeys.

Home Services

Plumbers, electricians, HVAC technicians, and cleaners use Emitrr to manage job scheduling, send reminders, and follow up post-service—leading to faster response times and fewer missed appointments.

Retail

Retail businesses automate order confirmations, delivery updates, and promotional messaging. This improves post-purchase communication, boosts repeat sales, and strengthens customer loyalty.

Automotive

Dealerships and service centers use Emitrr to manage test drives, service reminders, and follow-ups, creating smoother customer journeys and improving retention.

Insurance

Insurance providers rely on Emitrr for renewal reminders, claims updates, and two-way messaging. Personalized and bulk communication keeps policyholders informed while saving time for internal teams.

Key Takeaways

While the Gamma Horizon phone system works for basic calling, many businesses outgrow it as they need more flexibility, clearer pricing, and modern features. This often leads teams to look for a smarter, more scalable alternative.

Emitrr stands out as the best Gamma Horizon alternative because it brings calling, texting, and automation into one simple platform. With easy setup, transparent pricing, and tools built for growing teams, Emitrr offers a more modern and practical solution.

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