If I have two systems. One in Dallas and another in atlanta, GA. WHat special programming is needed to make video calls between the two seperate systems…
Presumably SIP video calls:
and for your extensions that can do video calls add codecs
The file name is sip_general_custom.conf. However I assume this is a recent system (always give your version numbers). You can enable video support from within the sip settings module. No need to edit the file.