[SIPForum-discussion] Antwort: SIP original A-number

[Roland.Gloeckler at arcor.net]

Hi,
Have a look at the History-Info header (RFC 4244). An outdated way is the 
diversion header (see 
http://tools.ietf.org/html/draft-levy-sip-diversion-08), that still can be 
seen in a lot of implementations. See also 
http://tools.ietf.org/html/draft-mohali-diversion-history-info-00 for a 
mapping between both.

Regards
Roland



27.08.2008 18:15


Gesendet von: discussion-bounces at sipforum.org

Absender:
"Jimmy Svensson" <Jimmy.Svensson at tdc.se>
An

<discussion at sipforum.org> 

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Thema

[SIPForum-discussion] SIP original A-number 



Hi!
 
Is there any features in SIP to enable show original A-number? Any special 
fields that can be used?
 
We as an operator use SIP-trunking to connect enterprise PBXes and see a 
demand to display the original A-number when doing an external forwarding. 
In this case someone calls an extension in the PBX that is forwarded to an 
external number. A new call leg is created to call this external number, 
here I want the original A-number to be shows as From but this is not 
allowed because of A-number-validation in our application server.
 
Any good solutions/workarounds?
Thanks!
 
Jimmy Svensson
Network Engineer
Technology Planning

TDC Sverige AB
Box 799
SE-191 27 SOLLENTUNA
Tel +46 8 563 101 23 dir.
Tel +46 8 519 810 00 vxl.
Mobil +46 701 81 01 23
Email jimmy.svensson at tdc.se
Web tdc.se
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