Signal is a messaging app with an unexpected focus on privacy, combined with all the features expected from a modern IM app. Signal has received a lot of praise from all around the world for its security and privacy-respecting technologies.
- - Signal is the most popular Windows, Android, Mac & iPhone alternative to Telephone.
- - Signal is the most popular Open Source & free alternative to Telephone.
Comments about Signal as a Alternative to Telephone
It can't connect to your pbx, the whole point of a softphone.0
Signal is not a SIP client0
Jami (formerly GNU Ring, SFLphone) positions itself as a potential free Skype replacement
- - Jami is the most popular Android Tablet alternative to Telephone.
Wire is the most secure collaboration platform featuring messenger, voice, video, conference calls, file-sharing, and external collaboration –all protected by the most secure end-to-end-encryption.
- - Wire is the most popular Web-based, SaaS & Self-Hosted alternative to Telephone.
Zulip is the only modern team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way.
Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.
Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your chatting within one application.
Empathy is currently unmaintained. Last version, 3.25, released in August 2017, can be still downloaded from the official website.
Video conversations with up to 8 people in your browser - no downloads, no login. Just name your channel and you are on. Works in all modern browsers, even mobile.
MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or on regular telephones) via open SIP protocol. From cloud of SIP providers you can choose best for you, register account and use it with MicroSIP. You'.
The 3CX Phone System is the software-based private branch exchange (PBX) Phone system based on the SIP (Session Initiation Protocol) standard and enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services...
Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure.
PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP). You need an internet connection and an account from a provider supporting the SIP protocol.