Originally Posted by LBPHeretic
SIP stands for Session Initiation Protocol. It is basically allows telephone calls to be transacted over HTTP.
Having the ability to use SIP in Android 2.3 and up just means that you can use your Google Voice telephone number with a VoIP app. I hope this helps.
do you have any write ups on this? everything i have tried that i found on google isn't working
i can get the phone to connect to the server and the server (using callwithus.com) to see the phone, but i cant make or receive calls. it will just say dialing then call ended right away