Under the name “VoIP SIP client” you can find our application in the version that can be used with 3rd party sip servers. The Vippie supports codec g729, g722 and g711. After installing it go to SIP settings where you can enter your SIP server IP or domain and set your login credentials. This version however does not support a range of extended features like callback and SMS which are supported only in connection with Voipswitch.