Interop with Resource List : rfc 4662

Hello,

 

I'm currently trying to configure an ACME SBC 3820 for interworking with a SIPXEcs IP PBX.

Basically, we have this

 

SIPXEcs (=core) ----------- < ACME SBC > ---------- Phones (=access)

 

The phones register to SIPEcs and are stored in the registration cache of the SBC.

A local policy is used to route access side toward SIPXEcs (eh, works better like this ).

 

The problem we are facing since some time now concerns call intercept :

- A phones to B

- C sees B is being called (LED blinking)

- C intercepts B

- call is established between A and C

 

 

If we bypass the SBC, this is working.