Linphone VS Asterisk

Well I can tell you that any SIP program can do this, one that comes to mind is Linphone. But you do need a provider. Almost all providers deal with UDP. You might be able to find one that transmits over tcp but that’ll be a very small list. TCP isn’t reliable for VoIP, for media anyway. At best you’ll find one that encrypts the signaling over TLS, which is TCP. But audio, even if encrypted too, is done over UDP.... Source: over 1 year ago

Does Linphone (https://linphone.org/) not meet that need of cross platform (website claims versions for all major OS'es) and open source (https://gitlab.linphone.org/BC/public/linphone-desktop)? - Source: Hacker News / over 1 year ago

Similarly, you can use any SIP (VoIP) provider (e.g. VOIPo Cloud), and configure the SIP account details in your native phone app. This way you will also be able to use a SIP softphone on your computer (e.g. LinPhone on Linux or Telephone on Mac), or even a real SIP phone in your home. Depending on your SIP plan you may or may not be able to make international calls this way. Source: over 2 years ago

I heard on RFD Fonus is using linphone.org to code their service. Source: almost 3 years ago

Retrieve the official files from asterisk.org, extract and change directories. Source: 10 months ago

Perhaps asterisk / FreePBSX or similar would suite your goals? asterisk.org. Bit of a learning curve, but there is lots of documentation and examples too. Source: almost 2 years ago

Asterisk? Foss telephoniserver, been around for a long time so mature and solid https://asterisk.org. Source: over 2 years ago

These are all just sound files, and from what I can recall I'd bet at least 97% are the standard Asterisk (open source PBX software) set (probably core perhaps plus some extras en + es for some). -- It's certainly Alison's voice, and and all the same jokes are there (e.g. zombies, lotso-monkeys). Source: about 3 years ago