for ex.
someone will make a 3G video call from his mobile and asterisk will transfer this video call to the operator that will answer the call and use his webcam to communicate with the client
is this available in asterisk ??
if it is available , what kind of cards or gateways should i have ??
Asterisk supports video calls with many different clients. However, 3G will be problematic and will be many handsets due to their processor performance. I have had good success with 4G and the newed multi-core processor phones.