All,
Take a look at the following call flow: UAC UAS -------->F1 INVITE w/o SDP <--------F2 180 w/ SDP1, Required: 100rel -------->F3 PRACK w/ SDP2 <--------F4 200 for PRACK <--------F5 200 for INVITE w/ SDP3 -------->F6 ACK w/ SDP4 Is this a valid call flow? Could the UAS change its SDP offer in 200 OK for INVITE? If there's any RFC that clarifies this scenario, please let me know. Thanks, Leo _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
