Many thanks for that! -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States
Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent from my BlackBerry. Original Message From: Dale R. Worley Sent: Tuesday, May 12, 2015 22:36 To: Alex Balashov Cc: [email protected] Subject: Re: [Sip-implementors] URI value mandatory for Alert-Info? Alex Balashov <[email protected]> writes: > My fundamental question is: is there any grammatically acceptable way to > have an Alert-Info header value consisting of no URI and just a > generic-param, e.g. > > Alert-Info: ;internal=xyz > Alert-Info: <>;internal=xyz The URI is not optional and there is no "empty" URI. However, there is the technique used in RFC 7473: Alert-Info: <urn:alert:service:normal>;appearance=1 "urn:alert:service:normal" specifies no unusual processing of the call, so the recipient can safely assign no semantics to the URI itself. Dale _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
