Grandstream GXV-3000 Video Phone H.264 Setup Help

how do i set up this phone for video transmission and add it with functional video codec h.264

In sip.conf - (or the appropriate #included file) you need to add the line videosupport=yes

You also need to allow the codecs Asterisk supports (show codecs at the Asterisk CLI) in the same way that you allow any other codecs. e.g. h264=yes

Last time I checked you can do an echotest (*43) to check it works, as the video is echoed back to the phone as well.


Where do I add this???