Satya, Thanks for your comments on the draft.
If B sends a BYE before sending the INVITE, then the call flow becomes identical to the unattended transfer of section 2.4 in which no Replaces header is used. If the session between B and C is still up (no BYE is sent), then the INVITE will need the Replaces header. Thanks, Alan Johnston WorldCom sip:[EMAIL PROTECTED] > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of > Yadavalli, Satyamurthy > Sent: Thursday, March 07, 2002 11:02 AM > To: 'Alan Johnston'; [EMAIL PROTECTED] > Subject: [Sip-implementors] attended transfer : > sipping-services-examples-00.txt > > > Section 2.5 (sipping-services-examples-00.txt) of the > attended transfer call flow example: > > When the F17 INVITE A -> C is received by C should the B - C > session still necessarily be present (because of the REPLACES > as part of F17)? > > Instead, if B releases B - C session before sending the > "Refer To C" to A > (F15) then C would have made its resources (e.g., in a voice > application such as a SIP gateway - conventional telephone > port to SIP VoIP gateway - the DSP resources) freed and > available for use when F17 INVITE arrives from A. > > Any comments? > > -satya > > _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
