gnophone is a VoIP telephone app that works nicely with Asterisk (www.asterisk.com) It depends on gsm (3921) and iax (3922)
Created attachment 1631 [details] gnophone VoIP app
Also, I suggest net-misc/gnophone
Have to wait for 3921(gsm) and 3922(iax) to be closed before fixing this one.
after freeze
already in