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mhamzahkhan
Beginner

Cisco 2851 with multiple SIP registrars

I'm trying to setup up my 2851 to register with two registrars (sipgate.co.uk and voiptalk.org).

Looking at "show sip-ua register status" it seems that I have successfully registered, but oddly it is trying to use the authentication of each other on both:

router1#show sip-ua register status 
--------------------- Registrar-Index  1 --------------------- 

Line                             peer       expires(sec) registered P-Associ-URI
================================ ========== ============ ========== ============
100XXXX                          -1         465          yes        
8449XXXX                         -1         165          no         

--------------------- Registrar-Index  2 --------------------- 

Line                             peer       expires(sec) registered P-Associ-URI
================================ ========== ============ ========== ============
100XXXX                          -1         165          no         
8449XXXX                         -1         2865         yes  

So it looks like it's trying to register using 100XXXX and 8449XXXX with both registrars, which is wrong.

I confirmed this using tcpdump.

I've been using this page to help configure the sip trunks: http://www.cisco.com/c/en/us/td/docs/ios/voice/sip/configuration/guide/15_1/sip_15_1_book/sip_cg-multi-registrars.html

I have this as my sip-ua config:

sip-ua 
 credentials number 100XXXX username 100XXXX password 7 PASSWORD1 realm sipgate.co.uk
 credentials number 8449XXXX username 8449XXXX password 7 PASSWORD2 realm voiptalk.org
 nat symmetric role active
 nat symmetric check-media-src
 no remote-party-id
 retry invite 2
 retry register 10
 timers connect 100
 registrar 1 dns:sipgate.co.uk expires 3600
 registrar 2 dns:voiptalk.org expires 3600
 connection-reuse
 host-registrar
 protocol mode dual-stack preference ipv6

Am I missing something obvious? :/ What could I be doing wrong?

1 REPLY 1
Kevin Monteiro
Rising star

Hope this link helps out:

http://tekcert.com/blog/2011/02/03/cme-configuration-example-sip-trunks-viatalk-and-voipms

rate the post accordingly.

Regards,
Kevin

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