Re: [OpenSIPStack] INVITE and multi via:

[eric h. <er...@so...>]

jo...@op... wrote:
> Hi Warren,
>
> If the call flow is Caller->sipX->SBC->ITSP, then OpenSBC would have 
> just sent a single via.  Is your call flow Caller->SBC->sipX->ITSP?
>
>   

We are working on publishing a How To guide for using OSBC with SIPX.  
But until that is ready, think about using SIPX as a gateway for all 
PSTN-bound calls so that the call flow would be as follows:   
UA->OSBC->SIPX->OSBC->ITSP.

Since OSBC will be proxying the media for NAT traversal in most cases, 
having OSBC as a single IP address (for both signaling and media) known 
to your ITSP will simplify their configuration as well.


> Joegen
>
> sales@ER wrote:
>   
>> Hi
>>
>> Our ITSP can accept only 1 Via statement in an INVITE.  The INVITE when it
>> reaches the SBC has an entry from the phone and two from sipx. I cannot find
>> any documentation about an option to remove Via Headers.
>>
>> Warren Kreckler
>>
>>     
>