Hey Laura, Some more details of your environment/scenario would be *really* useful. I have seen similar symptoms involving early media from a PSTN gateway but need more details to offer anything more useful.
Thanks, B Ben Gatewood Lead Architect - IP Telephony Streamdoor Ltd. +44 20 7422 0439 +44 7835 136 187 [EMAIL PROTECTED] INVITE. TRYING. RINGING. OK. ACK. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Laura Meng Sent: 19 January 2005 12:59 To: [email protected] Subject: [Sip-implementors] why 180 and 183 come back togather? Hi, I just begin work on sip so I am not sure lots of staff. here is one: I got double ringback, it seem one from 180, another from 183, but why this two response occure togather? is it because the proxy fork INVITE to a PSTN phone as well as IP phone? if so, should the proxy forward all the 180/183 back? if so, what a mass at the UA's end, it start a single phone to want to talk to someone, but turn out maybe it could get a meeting there! Confusing... Thanks. _________________________________________________________________ Take advantage of powerful junk e-mail filters built on patented Microsoft(r) SmartScreen Technology. http://join.msn.com/?pgmarket=en-ca&page=byoa/prem&xAPID=1994&DI=1034&SU =http://hotmail.com/enca&HL=Market_MSNIS_Taglines Start enjoying all the benefits of MSN(r) Premium right now and get the first two months FREE*. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors ************************************************************************ ************** Disclaimer: This electronic message may contain privileged or confidential information. If you are not the intended recipient, be advised that any disclosure, copying, distribution or use of this information is strictly prohibited. If you are not the intended recipient, please notify the sender and delete this message. Views expressed in this message are those of the individual sender, and are not necessarily the views of the Streamdoor Limited, unless otherwise stated. Although Streamdoor Limited has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachement Employees of Streamdoor Limited and its affiliates are expressly required not to make defamatory statements and not to infringe or authorise any infringements of copyrights or any other legal right by email communications. Any such communication is contrary to company policy and outside the scope of the employment of the individual concerned. For further assistance on email policy, or if you have received this email in error, please contact Streamdoor Group IT&C Helpdesk by email at it&[EMAIL PROTECTED] or write to Streamdoor Ltd , Head of IT&C Department , 114 Power Road , Chiswick, London , W4 5PY. www.streamdoor.com ************************************************************************ ************** ************************************************************************************** Disclaimer: This electronic message may contain privileged or confidential information. If you are not the intended recipient, be advised that any disclosure, copying, distribution or use of this information is strictly prohibited. If you are not the intended recipient, please notify the sender and delete this message. Views expressed in this message are those of the individual sender, and are not necessarily the views of the Streamdoor Limited, unless otherwise stated. Although Streamdoor Limited has taken reasonable precautions to ensure no viruses are present in this email, the company cannot accept responsibility for any loss or damage arising from the use of this email or attachement Employees of Streamdoor Limited and its affiliates are expressly required not to make defamatory statements and not to infringe or authorise any infringements of copyrights or any other legal right by email communications. Any such communication is contrary to company policy and outside the scope of the employment of the individual concerned. For further assistance on email policy, or if you have received this email in error, please contact Streamdoor Group IT&C Helpdesk by email at it&[EMAIL PROTECTED] or write to Streamdoor Ltd , Head of IT&C Department , 114 Power Road , Chiswick, London , W4 5PY. www.streamdoor.com ************************************************************************************** _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
