[SR-Users] Handling 407 Proxy Authentication, Elastix MT

[Daniel-Constantin Mierla]

Hello,

On 11/05/15 08:41, Darren Campbell (Primar) wrote:
> Hi all
>
> Have Asterisk listening on 127.0.0.1 and aiming to route all
> inbound/outbound SIP via Kamailio listening on 127.0.0.1 and external
> interface.
>
> Inbound calls from the SIP PROVIDER work just fine. Have NAT, rtpproxy
> configured for successful registration and subsequent INVITEs etc.
>
> Experiencing some challenges with the outgoing INVITES, primarily
> authenticating the outbound INVITEs.
>
> The current situation is this:
> Asterisk > INVITE > Kamailio > INVITE > SIP PROVIDER
> SIP PROVIDER > 407 Proxy Authenticate > Kamailio > Transaction Cancelled.
> Asterisk then plays number unavailable message.
>
>
> The desired situation is more like this:
> Asterisk > INVITE > Kamailio > INVITE > SIP PROVIDER
> SIP PROVIDER > 407 Proxy Authenticate > Kamailio > Asterisk
> Asterisk > INVITE (with auth digest etc) > Kamailio > INVITE > SIP
> PROVIDER
>
>
> An attempted solution was made by having Kamailio authenticate using
> the uac module. However, ideally Kamailio should be mostly transparent
> and Asterisk should be handling and responding to the 407 Proxy
> Authentication.
>
> If there is someone in the Kamailio community that has addressed this
> situation before, guidance would be much appreciated.
do you have a failure_route block in kamailio.cfg? Be sure that if
401/407 is received, you just exit the routing block:

failure_route[abc] {
  ...
  if(t_check_status("401|407")) exit;
  ...
}

Then the 401/407 replies will be sent upstream to asterisk.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - http://www.kamailioworld.com

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