From a user standpoint, it is not terrible, especially considering what it is doing. It is definitely not as real time as a standard phonecall, but if you are not in the same room, you hardly notice it.
The CSipSimple solved the latency issue by utilizing the native PJSIP C library for all heavy lifting: http://www.pjsip.org/ http://code.google.com/p/csipsimple/
From a user standpoint, it is not terrible, especially considering what it is doing. It is definitely not as real time as a standard phonecall, but if you are not in the same room, you hardly notice it.
The CSipSimple solved the latency issue by utilizing the native PJSIP C library for all heavy lifting: http://www.pjsip.org/ http://code.google.com/p/csipsimple/