1. 2008-12-19 Re: [Sip-implementors] PRACK -200 OK / Offer Answer M sip-imple Nabam 2. 2008-12-19 Re: [Sip-implementors] PRACK -200 OK / Offer Answer M sip-imple Paul Kyzivat 3. 2008-12-19 Re: [Sip-implementors] PRACK -200 OK / Offer Answer M sip-imple zhengyli 4. 2008-12-19 [Sip-implementors] PRACK -200 OK / Offer Answer Model sip-imple pravin.swami