Hi Varun If I get your point, you are trying to differentiate call on hold with one way audio.
Music on hold implemented is using one way audio (sendonly(in offer) and recvonly(in answer)). Practically, hold (without music) is done by exchanging sdp with attribute as inactive. Also, in case it is done with a=sendonly(in offer) and a=recvonly(in answer), the UAC may chose not to send any RTP data at all. Also INVITE (sendonly) and reINVITE (sendonly) can be treated as 1 way audio and call hold respectively. Hope this helps. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
