Application category Telephony

Talk to and see people over the Internet

Receive and send text messages from your mobile phone

Linphone is a libre SIP client

Place phone calls over the Internet

Talk to people over the Internet and send instant messages over multiple protocols

Call and receive calls with SIP or IAX protocols

Call and receive calls with SIP or IAX protocols

Voice over Internet Protocol (VoIP) SIP Phone

GUI front end for the efax fax program

Linphone audio assistant

Ring is a secured and distributed communication software.

Qt 5 based Tox instant messenger for secure communication

Voice chat on Ventrilo 3.x servers

Call and receive calls with SIP or RING protocols

Jami is a secured and distributed communication software

VoIP and Instant Messaging client

Receive and send text messages from your mobile phone