[SR-Users] Kamailio Infront of Asterisk with remote PBX

[Kenny Watson]

Hi Daniel,

thanks for this, it looks like exactly what I'm looking for.  I've been moved onto another project for the next week but will try this as soon as I can.


Thanks
Kenny Watson

-----Original Message-----
From: sr-users-bounces at lists.sip-router.org [mailto:sr-users-bounces at lists.sip-router.org] On Behalf Of Daniel Tryba
Sent: 24 October 2014 12:40
To: sr-users at lists.sip-router.org
Subject: Re: [SR-Users] Kamailio Infront of Asterisk with remote PBX

On Thursday 23 October 2014 19:16:58 Kenny Watson wrote:
> What I need to figure out is how to on kamailo maybe using a dial 
> prefix specify that the call is going to a remote extension on a 
> "user" and rewrite the to header to be extension at useripaddress rather 
> than user at useripaddress.

I think your "problem" can be summarized as:

initial trunk invite: INVITE sip:number at kamailio in kamailio $rU is number, but after a successful location lookup
(lookup("location")/alias_db_lookup) $rU is the username from subscribers or dbaliases. Without further processing the invite to asterisk would look like:
INVITE sip:username at asterisk

The solution I use is simple:
-before lookup I store the initial $rU in an avp(callednumber).
-lookup
-check in usr_preferences wether the endpoint wants DID or should be addressed with its username (true/false) -if true: $rU=$avp(callednumber)
-t_relay()

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