[Freeswitch-users] Checking call is connected while bridged in lua

[Brian West]

You're working under the assumption that your custom headers are going to traverse your providers network and make it back to the second freeswitch... I don't think you can make that assumption.  I know if I were a provider all your custom headers would be nuked at the border in ingress to my network.

You're just trying to make sure that calls stay on the approved network routes.. not sure you can make sure that will always happen end to end if a route takes PSTN out and back in you've lost the ability to follow this... unless I'm totally off base here and missed the point.

/b

On Sep 24, 2013, at 5:33 PM, David Villasmil <david.villasmil.work at gmail.com> wrote:

> Hello,
> 
> I don't think this is something FS can do. Let me explain:
> 
> We have FS-A and FS-B, between which are multiple SIP providers. We are checking that the providers between A and B don't divert calls to non-approved vendors. So what I'm doing is:
> 
> When relaying the call from FS-A to the provider, I'm adding a SIP header with a unique ID, which is inserted into a DB table. 
> When FS-B receives the call, i retrieve the header ID and look it up in the table and mark it as answered.
> On FS-A, when the call is answered, it looks up the ID and makes sure it has been marked as "answered" by FS-B.
> If it is NOT marked, FS-A MUST disconnect the call.
> 
> I hope the explanation was clear, and if anyone has a better idea of how to do this, I'm all ears :)
> 
> Thanks
> 
> David

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