On 11/22/2011 03:42 AM, Brez Borland wrote: > Hi Adam, > > > On Tue, Nov 22, 2011 at 3:40 AM, Adam Frankel (afrankel)<afran...@cisco.com >> wrote: >> Hi All, >> >> I am seeing a scenario for an established call in which an outbound >> reINVITE is being done, the far end is sending a TRYING and then a REFER >> immediately. We are rejecting this REFER with a 400 Bad Request because >> the INVITE transaction has not been completed. >> >> I am not clear whether REFER is allowed mid reINVITE or if the far end >> should wait for the 200OK/ACK to complete before sending the REFER. >> I took a look a RFC3515 but it does not appear to state either way >> whether this is allowed. Can anyone comment? >> >> > You are right to reject it. Caller can send REFER on it's early dialogs, > calle can send REFER only on confirmed ones. This question appeared > recently, search for "REFER w/Replaces received right after slow start > INVITE" subject on sip-implementors list. > > > Regrds, > > Brez But this is different because the dialog is confirmed, not early. He's receiving a REFER after sending a reINVITE, not an initial INVITE.
Mark Michelson _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
