>Is it acceptable for a gateway to send a 183 without SDP and >then one second later send another with SDP?--will
Yes, unless the INVITE did not contain SDP, and the 183 is the first reliable response you send. In that case it MUST contain SDP (unless we change that rule at some point, but that's a separate discussion...). Regards, Christer _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
