1. 2001-05-08 RE: [Sip-implementors] Re: [SIP] Clarification on sdp sip-imple Jonathan Rosenberg 2. 2001-04-27 [Sip-implementors] Re: [SIP] Clarification on sdp usa sip-imple Ovidiu Sas 3. 2001-04-25 [Sip-implementors] Re: [SIP] Clarification on sdp usa sip-imple Manoj Bhatia 4. 2001-04-23 [Sip-implementors] Re: [SIP] Clarification on sdp usa sip-imple Shan Lu