The Best 15 Avaya Voice Portal Alternatives

  • 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 OS X Windows Linux

  • Elastix

    Elastix is an open source Unified Communications Server software that brings together IP PBX, email, IM, faxing and collaboration functionality.

    Freemium Linux

  • Yate - Yet Another Telephony Engine

    Yate is a softswitch (concept of separating the network hardware from network software). It supports VoIP protocols: H.323, SIP, IAX1, IAX2, RTP. For the plain old telephony systems (PSTN) it supports ISDN BRI and PRI.

    Free Open Source Linux

  • freepbx

    FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server.

    Free Open Source Linux

  • Wazo

    Wazo is a unified communications platform based on Asterisk and focused on extensibility.

    Free Open Source Mac OS X Windows Linux Self-Hosted

  • 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

  • Plum DEV

    Plum DEV allows developers to build voice applications that automate a company’s most frequent communications. This includes everything from highly interactive customer...

    Commercial Web

  • Cloud Telephony

    The main purpose of cloud telephony is connecting with the customers for providing your services support. IVR is the software which is used for the cloud telephony.

    Commercial Web

  • Cisco IOS Voice XML Browser

    Cisco IOS ® Software provides many rich voice capabilities, including VoiceXML browser services. Available on a wide range of Cisco IOS Software voice gateways.

    Commercial Windows Linux

  • Voiceglue

    Our overall goal is to provide a full-featured integration of open source telephony environments and OpenVXI including as many features as possible while conforming to...

    Free Open Source Linux