Business phone systems: Features and vendor insights

At the heart of many organizations' communication infrastructure is the PBX (Private Branch Exchange). Originally hardware-based, the PBX has evolved into a versatile solution that can be deployed as on-premise hardware, cloud-hosted software, or a hybrid model.

What is a phone system?

A PBX, or phone system, or cloud PBX, or even UCaaS, are essentially different terms used to describe a system that manages an organization’s communication needs. At its core, a PBX (Private Branch Exchange) is the technology responsible for routing calls between internal users and connecting them to external lines. Over the years, the term has evolved as phone systems have transitioned from hardware-based solutions to software-driven platforms, often hosted in the cloud.

Modern PBX systems, whether referred to as cloud PBX or UCaaS, typically offer a set of features that go far beyond simple call management. These include call routing, voicemail, video conferencing, messaging, and integration with third-party applications like CRM tools or email platforms. Regardless of the terminology, the purpose remains the same: to streamline communication and enhance productivity within a business.

The shift to cloud and software-based systems has also introduced greater flexibility, allowing businesses to scale their phone systems as needed and support remote or hybrid work environments. While the names may differ, the essential functionality and benefits of these systems are largely consistent, making them indispensable for organizations of all sizes.

Core features of a phone system solution

1. Call routing and management: Automatically directs calls to the appropriate person or department.
2. Unified communications (UC): Combines voice, video, messaging, and collaboration tools.
3. Voicemail and call recording: Supports message management and quality assurance.
4. Scalability: Easily expand or reduce capacity to match business needs.
5. Integration: Connects with tools like CRM systems, email platforms, and contact center software.
6. Mobility: Enables communication across devices, allowing employees to work from anywhere.

With these advanced features, PBX systems enhance productivity, improve customer experiences, and streamline workflows. Below, we explore some of the most popular phone systems, highlighting their unique strengths and features.

Choosing the right phone system

Selecting the right phone system depends on your business size, communication needs, and deployment preferences—whether cloud-hosted, on-premise, or hybrid. Each vendor offers unique features, from advanced unified communications to robust PBX capabilities. Below, we highlight leading providers to help you find the best fit for your organization.

1. Innovaphone

Innovaphone is a German-based provider of IP telephony and unified communication solutions. Its modular PBX system can be deployed on-premise, in the cloud, or as a hybrid model, making it adaptable for businesses of all sizes. Known for its robust hardware, Innovaphone delivers a reliable, secure, and scalable system.

• Standout Features:
• Modular IP PBX that adapts to on-premise or cloud environments.
• Extensive UC capabilities, including video conferencing and messaging.
• Highly secure architecture, with built-in redundancy for mission-critical operations.
• For more details, explore Innovaphone's website.

2. 3CX

3CX is a software-based PBX that combines cost efficiency with powerful features. Designed for both small businesses and large enterprises, it offers flexibility through cloud hosting or on-premise deployment. 3CX is well-regarded for its video conferencing capabilities and integrations with popular tools like Microsoft 365 and CRMs.

• Standout Features:
• Advanced web conferencing tools included at no extra cost.
• Intuitive management console for system administration.
• SIP trunking support for cost-effective external communication.

3. Wildix

Wildix is a unified communications platform that prioritizes browser-based solutions using WebRTC technology. This eliminates the need for plugins or downloads, offering a streamlined user experience. Wildix also emphasizes security, with encrypted communication as a standard.

• Standout Features:
• WebRTC-powered UC tools for instant voice, video, and messaging.
• Built-in collaboration features like screen sharing and team chat.
• Strong focus on secure communication, including encryption and compliance support.

4. Avaya

Avaya provides robust PBX systems that cater to businesses of all sizes, offering flexible deployment options. Its solutions are known for supporting hybrid cloud environments and integrating with contact center tools. Avaya’s systems are highly scalable and meet the demands of modern communication.

• Standout Features:
• Cloud, on-premise, and hybrid deployment models.
• Strong contact center support for omnichannel communication.
• Advanced analytics for optimizing communication efficiency.

5. Cisco CUCM (Unified Communications Manager)

Cisco CUCM is an enterprise-grade PBX solution that delivers reliable voice and video communication. Known for its extensive integration capabilities, it provides businesses with a unified communication experience that scales effortlessly. Cisco’s solutions are particularly popular in enterprise environments.

• Standout Features:
• Enterprise-level VoIP and video collaboration tools.
• Integration with Cisco’s extensive networking and security ecosystem.
• Secure protocols to protect communication channels.

6. Microsoft Teams

Microsoft Teams extends its collaboration platform with VoIP and PBX capabilities. This makes it an excellent choice for organizations already using Microsoft 365. Teams supports advanced features like direct routing for external calls and deep integrations with other Microsoft tools.

• Standout Features:
• Direct routing and phone system capabilities for VoIP communication.
• Integration with the Microsoft 365 ecosystem.
• Video conferencing with breakout rooms and team collaboration tools.

7. Aircall

Aircall is a cloud-based phone system designed with simplicity and scalability in mind. It’s particularly well-suited for small and medium-sized businesses (SMBs) that need strong CRM integration and easy-to-use features.

• Standout Features:
• Native integrations with tools like Salesforce, HubSpot, and Slack.
• Advanced call analytics and monitoring tools.
• Quick setup and deployment for fast adoption.

8. Yeastar

Yeastar specializes in providing easy-to-manage PBX systems for SMBs. It offers both on-premise and cloud options, with an emphasis on flexibility and cost efficiency. Yeastar’s solutions are well-known for their modular design and ease of scalability.

• Standout Features:
• Modular PBX Plus system for UC and call management.
• Easy scalability for growing businesses.
• Strong SIP trunking support for external connectivity.

9. Starface

Starface provides a hybrid PBX solution that supports businesses needing flexibility between on-premise and cloud environments. Its user-friendly interface and rich feature set make it popular in Europe.

• Standout Features:
• Flexible hybrid deployment options.
• Integration with popular tools like Microsoft Teams.
• User-friendly administrative tools for managing the system.

10. Mitel

Mitel is an established name in unified communications, providing scalable PBX systems to enterprises. Its solutions integrate UC and contact center features.

• Standout Features:
• Unified communication tools for voice, video, and messaging.
• Strong focus on contact center integrations.
• Flexible deployment options, including hybrid models.

11. RingCentral

RingCentral is a leading cloud-based PBX system that focuses on integrating communication and collaboration tools. It is designed for businesses that value ease of use and scalability.

• Standout Features:
• Team messaging and video conferencing.
• Robust analytics and call management tools.
• Wide range of integrations with third-party applications.

Continue exploring

Each of the phone systems mentioned above offers robust features and functionality, making them excellent choices for various business needs. Many of these systems are fully compatible with Mixvoip’s SIP trunking, enabling high-quality VoIP communication. Additionally, they can be paired with Mixvoip mobile services and fixed-line phone numbers, offering a complete communication solution. This is particularly relevant for systems that are not sold as cloud SaaS services but can be self-hosted or even deployed in hardware versions, providing businesses with greater control and flexibility.

Modern phone systems, whether they are called PBX, cloud PBX, or UCaaS, generally offer a set of features, including unified communication tools, call routing, voicemail, video conferencing, and integrations with third-party software. While the terminology may vary, the core functionality and benefits remain similar, ensuring that businesses can streamline their communication workflows and enhance productivity regardless of the system they choose.

If you’d like to learn how these phone systems compare to Mixvoip’s Voxbi, click here to explore Voxbi’s features and its integration capabilities with third-party software. Alternatively, feel free to contact us directly to arrange a meeting and discuss how Mixvoip’s solutions can complement or replace your current phone system. Our team is here to help you make the right choice for your business communication needs.

Latest articles

Telephony

SIP Trunk

Call rates

Phone numbers

Mobile

Hardware

Desk phones

Headsets

Wireless phones

Conference systems

Switches and Wi-Fi

Routers & Firewalls

Doorbells & Intercoms

All products

Cloud PBX

Voxbi Cloud PBX

Features

Microsoft Teams

Integrations

Tempus

Pricing

Downloads

Insights

3CX Innovaphone

Wildix

Emios

All Insights

Connectivity

Internet in Luxembourg

Internet in Belgium

Internet in France

Internet in Germany

Internet add-ons

Mobile connectivity

Service Level Agreements

Network and IT

Co-managed LAN

IT services

Cybersecurity

IPTV

Mixvoip

Contact us

About us

Events

Career

Support

Maintenance updates

Newsletter

Resources

Blog

Certification levels

Partner program

Our accreditations

FAQs