1. 2017-08-31 [2] [Sip-implementors] SDP Payload Format sip-imple Asim Sulaiman 2. 2017-08-18 [2] [Sip-implementors] In-Dialogue sip-imple Dale R. Worle 3. 2017-08-08 [3] [Sip-implementors] No ACK for 200 OK sip-imple Puneet Kumar 4. 2017-08-01 [4] Re: [Sip-implementors] Processing of Standalone 200 O sip-imple Paul Kyzivat