> Can I have sip-uri and in that have a isub? Yes; sip-uri can contain a telephone-subscriber as indicated within RFC 3261.
The telephone-subscriber is defined within RFC 3966. The isub parameter is discussed within RFC 3966 and RFC 4715. The following are useful to help track the registered parameters. http://www.iana.org/assignments/tel-uri-parameters/tel-uri-parameters.xml http://www.iana.org/assignments/sip-parameters/sip-parameters.xhtml > 2) is it mandatory that what ever R-URI is, it should be > same in the To-Header also? No; however you might want to look at RFC 3261 for more details. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
