C library/source code for building VOIP?

[john2020]

Hello,

i want to develop programs which are VoIP based. Does someone know if there
are C libraries or better source code for building up a SIP connection ? I
think i also need the same for STUN. Are there any open projects for this ?

Regards,
John

 

[bepobalote]

Not too difficult if you EVER tried to use google or any other search engine!!
This is the first hit I found with the following search words:
"voip source code"

https://www.voip-info.org/wiki/view/Open+Source+VOIP+Software