Best XO Hosted PBX Alternatives & Competitors in 2025

VoIP.ms is a VoIP origination and termination tool.

Phonebooth is one of the leading voip providers, providing phone systems & phone service for small businesses.

The fastest AI note-taker to capture your scattered thoughts and turn them into organized notes.

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Google Voice gives you one number for all your phones, voicemail organized in an email format, free...

eir SIP Voice is revolutionizing the core communications tool of business that carries both calls and data over just one connection.

Business Communications and Collaboration

Vitelity offers hosted PBX, VoIP, SMS and communication solutions.

TDS Business offers confidence in every connection through our business VoIP phone service options.

BVoIP allows to easily add Cloud & On-Premise VoIP PBX to the product offering without having to re-invent the wheel or add another layer to the daily operations..

CSipSimple is a SIP application for android devices.

Loop Communications provides hosted VoIP business phone systems to small businesses and mid-sized companies.

CounterPath enables users to make VoIP audio and video calls, send instant messages and manage their presence in an easy-to-use software.

Linphone is an internet phone or Voice Over IP phone (VoIP).

Open Source

VirtualPBX provides hosted VoIP PBX phone services that give small and medium growing businesses a professional, fully automated call answering and routing solution