Hi, I am not sure of any no response code 255 that is defined. If a UAC receives 255 response for invite it MUST send ACK. As per sec 7.2 in 3261, 2XX is success. so behavior when UAC receives 255 and 200 should be the same.
"In general I feel "on receipt of success 2** response with non defined last 2 digits (like 88,77...)",the UAC should send ACK." Regarding mapping in rfc 3398: The mapping for 200 and 255 should also be the same. HTH, Sreeram. ________________________________ From: [EMAIL PROTECTED] on behalf of Tran, Son Sent: Fri 9/9/2005 1:21 PM To: [email protected] Subject: [Sip-implementors] RFC3261 - where 2xx ENUM define Hi, The RFC3261 does not define any ENUM for 2xx. Can anyone give me a pointer to where it is? I am especially interesting to know the meaning of 255. Also another question of what should the UAC behaves if it received 255? The RFC3261 said: "If, after acknowledging any 2xx response to an INVITE, the UAC does not want to continue with that dialog, then the UAC MUST terminate the dialog by sending a BYE request as described in Section 15." For example from an ISUP to SIP call, if the UAC wants to continue with the dialog when it receives 255, how it should map to ISUP side? Or is it possible? The RFC3398, section 8.2.4 only mention about 200 OK. Thanks. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or [EMAIL PROTECTED] immediately and destroy all copies of this message and any attachments. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
