Hi Thanks very much for the replies! I'm clear now :)
Yufei On 17/03/12 10:56, Juha Heinanen wrote: > Klaus Darilion writes: > >> They achieve both the same. I don't remember the problems anymore which >> caused add_contact_alias() to be implemented. IIRC I think it was that >> some clients did not put "transport=tcp" into the Contact header and >> thus the fix_anted_contact missed the transport - add_contact_alias >> always adds the transport protocol. But that is just a guess, I may be >> wrong. > the main reason why i implemented those two functions was to assure that > request uri in in-dialog requests is always correct. regarding tcp > connection reuse, i don't remember why i wrote about that in the > tutorial. perhaps i was just mislead by the name of fix_nated_contact() > function that is incorrect. i just checked and the function has nothing > to do with nated contacts. > > -- juha -- Yufei Tao Red Embedded This E-mail and any attachments hereto are strictly confidential and intended solely for the addressee. If you are not the intended addressee please notify the sender by return and delete the message. You must not disclose, forward or copy this E-mail or attachments to any third party without the prior consent of the sender. Red Embedded Design, Company Number 06688253 Registered in England: The Waterfront, Salts Mill Rd, Saltaire, BD17 7EZ _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users