Video Call features

Hi to all,

I want to know it is possible to record a video call in Asterisk? if answer is yes plz let me know how?

Another question is that it is possible to have a HD video call, a full screen video call in Asterisk?
I did some tests on eyeBeam,3CX,zoiper,Microsip. but the video size is small and only in 3CX you can maximize it but the quality is not acceptable. Please let me know your solution for a full screen and HD video call on Asterisk server.

Thanks a lot.