From: "Leonid Fainshtein" <[EMAIL PROTECTED]> Sometimes I see devices that send INVITE without user name in R-URI but in the To header field it appears. Must a VoIP gateway reject such request or instead take the user name from header To and initiate call to PSTN. For example:
INVITE sip:1.2.3.4:50000;transport=UDP SIP/2.0 From: <sip:[EMAIL PROTECTED]>;tag=40de6bc8-c24334bd-13c4-26c596-6af63e5f-26c596 To: <sip:[EMAIL PROTECTED]> .... As you can see the UAC "invites" UAS to make call to telephone number 6555. A gateway (or other device) should not take any automated action based on the To URI, only on the Request-URI. That is because the INVITE may have passed through multiple proxies and various forwarding operations; the information about the "real" destination of the call should be entirely contained in the Request-URI. It is possible that the gateway is configured to know what to do with an INVITE with a Request-URI without a user-part, but most likely it should reject it as having an unusable address. Dale _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
