[OpenSIPS-Users] B2BUA help

[opensipslist at encambio.com]

Hello Anca,

An ven., févr 05, 2010, Anca Vamanu schrieb:
>opensipslist at encambio.com wrote:
>> I've changed the parameters to:
>>
>>   b2b_init_request("prepaid", "sip:playsound at name.host.tld:5080;transport=tcp", "sip:playsound at name.host.tld:5080;transport=tcp");
>>
>> ...because name.host.tld is listening on TCP port 5080.
>> Before, the B2BUA modules were sending over TLS, which is how
>> the original INVITE from the UAC is sent. Is there a better way
>> to tell the B2BUA modules to use TCP rather than another transport?
>>
>No, unfortunately there is no other way to tell b2b to use other
>protocol.
>
It's probably enough to do it the way I described, but it seems like
there must be a more elegant/consistent way to do transport changes.

>> My main question now, is that the host name.host.tld is getting the
>> message, but challenging the B2BUA logic with a WWW-Authenticate 401
>> message. This gets passed implicitly back to the UAC which sent the
>> INVITE, however it seems that the B2BUA modules strip the WWW-
>> Authenticate header so that the UAC only sees a 'sanitized'
>> 401 SIP message and cannot authenticate.
>>
>> How can I adjust the prepaid scenario to accommodate 401 challenges?
>>
>If you use the trunk svn branch, you have a parameter in b2b_logic
>module - "custom_headers". You can set it to "WWW-Authenticate,
>Authorization" and the content of these headers will be passed on
>the other side.
>
That's great, thanks Anca. I'll try out the new 'custom_headers'
parameter.

Regards,
Brian