Alternatives to Cloud Telephony for all platforms with any license

Asterisk

Asterisk is free software that transforms a computer into a communication server. Asterisk lets you build applications like PBX, VoIP gateway, IVR and ACD.

Free Open Source Mac Windows Linux
Low level SIP Voice chat Add a feature

34 Like
Twilio

Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful...

Freemium Web
API Integration Built-in authentication Api IVR ... SMS API Video chat Voice Call Voice chat Add a feature

24 Like
Plivo

Plivo is a voice and SMS API platform that enables developers and enterprises to build powerful apps with great features. With 24/7 free tech support and low prices...

Commercial Web
Api Developer Tools SMS API Voice chat Add a feature

14 Like
RingCentral Engage Digital

Leading brands use RingCentral Engage Digital SaaS software applications to make it easier to manage their online customer service activities. Our clients enjoy lower...

Commercial Open Source Mac Windows Web Android iPhone ... Windows Phone
Merging identities Multiple channels Omni-digital Cross-platform ... Customer Feedback Customer service Customer support Customizable Knowledge base Team Collaboration Add a feature

2 Like
XiVO

XiVO is an IP-PBX, a unified communications platform that connects phones on a local or private network with other networks such as public landlines and mobile...

Free Open Source Mac Windows Linux
Voice chat Add a feature

4 Like
Voximplant

Voximplant is a cloud platform for developing real-time communication apps with full control over voice and video. Our cloud application engine provides developers with...

Commercial Web Android iPhone
SIP Video calling WebRTC Add a feature

12 Like
Aspect Prophecy

Aspect Prophecy is a powerful, entirely standards-based platform for speech, IVR, and SIP VoIP applications. Prophecy is the world’s first telephony application platform...

Commercial Linux Self-Hosted
SIP Speech Recognition Text to Speech Voice chat Add a feature

1 Like
CALLR

CALLR is a global voice and SMS service built to help brands create automated, personalized and contextual communication with an API covering more than 220 countries....

Commercial Web Android iPhone
Call recording Call forwarding Voice Call Api ... Call Tracking Dedicated phone number Developer Tools IVR Messaging Messaging-sdk SIP SMS Alerts SMS API SMS Automation Sms from PC Sms gateway SMS Messaging Software as a Service Text to Speech Transactional SMS Voice chat Voice messages Transcribe Voicemails Add a feature

7 Like
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VoipSwitch

VoipSwitch is a SoftSwitch System with routing and billing, with SIP protocol support (in older versions also H323). Basic package includes softswitch app, IVR app...

Commercial Windows
Call recording IVR SIP Video Conferencing ... Voice chat Add a feature

1 Like
The Voximal stack

The voice phone platform based on Asterisk and FreePBX propulsed by Voximal VoiceXML interpreter.

Freemium Linux Web Self-Hosted Amazon Raspbian ... Raspberry Pi Microsoft Azure Docker
Chat Bot IVR Natural Language Processing SIP ... Speech Recognition Text to Speech Voice chat Voice recognition Add a feature

2 Like