Subject: [MMUSIC] draft-ejzak-mmusic-data-channel-sdpneg and DCEP

From: Christer Holmberg <[email-masked]>
Date: Fri, 21 Nov 2014 19:16:58 +0000

Hi,

draft-ejzak-mmusic-data-channel-sdpneg currently seems to assume that DCEP will not be used to open data channels - instead data channels will be considered open once the SDP O/A negotiation has finished and the SCTP association used to realize the data channel(s) has been created.

My question is whether the intention is to forbid usage of DCEP together with draft-ejzak-mmusic-data-channel-sdpneg, or whether it should be optional?

If optional, there needs to be a way to indicate that application data shall not be sent until a channel has been opened using DCEP. In addition, it would be useful to be able to indicate which endpoint is responsible for sending the DCEP_CHANNEL_OPEN message.

Regards,

Christer