Hmm. I wonder if this has to do with whether one is using npdi in a tel URI mapping or a SIP-ISUP mapping context.
On 04/11/2012 11:49 AM, Alok 2 Tiwari wrote: > Hi Alex, > > "npdi" is a parameter in Request URI. So it neither can appear in the user > part nor in the domain part. > It will appear as a uri-parameter as per following grammar. > > > > Request-Line = Method SP Request-URI SP SIP-Version CRLF > Request-URI = SIP-URI / SIPS-URI / absoluteURI > > SIP-URI = "sip:" > [ userinfo ] hostport uri-parameters [ headers ] > SIPS-URI = "sips:" > [ userinfo ] hostport uri-parameters [ headers ] > > uri-parameters = *( ";" uri-parameter ) > uri-parameter = transport-param / user-param / > method-param > / ttl-param / maddr-param / lr-param > / compression-param / target-param / cause-param > / orig / gr-param > / other-param > > > as per above grammar, following is valid example. > > sip:5551212@domain:5060;rn=...;npdi > > > Regards, > Alok Tiwari > Aricent > ________________________________________ > From: sip-implementors-boun...@lists.cs.columbia.edu > [sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Alex Balashov > [abalas...@evaristesys.com] > Sent: Wednesday, April 11, 2012 8:07 PM > To: sip-implementors@lists.cs.columbia.edu > Subject: [Sip-implementors] npdi parameter in sip: scheme URIs > > Between RFC 3398 and 4694, I am unclear on whether the 'npdi' parameter > can only appear in the user part of a sip: RURI: > > sip:5551212;rn=...;npdi@domain:5060 > > or whether it can also appear in the domain part: > > sip:5551212@domain:5060;rn=...;npdi > > All I can find are references to the idea that these parameters appear > "within" the Request URI. Are both cases valid? > > Thanks, > > -- > Alex Balashov - Principal > Evariste Systems LLC > 235 E Ponce de Leon Ave > Suite 106 > Decatur, GA 30030 > Tel: +1-678-954-0670 > Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > =============================================================================== > Please refer to http://www.aricent.com/legal/email_disclaimer.html > for important disclosures regarding this electronic communication. > =============================================================================== -- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
