[Freeswitch-users] Dialplan - bridging with transfer of destination_number

Petr Both both at antek.it
Wed May 30 13:49:42 UTC 2018

Hi list,

I have found the solution by myself. It will be useful to have answer 
here. The correct DIALPLAN extension is in this case

<extension name="Loopback">
     <condition field="destination_number" expression="^(5000)$">
     <action application="bridge" 

Where device at is the SIP client registered to FS at like user 1005. Using such DIALPLAN <extension> the call 
incoming from SIP client with destination number 5000 is immediately 
routed back to the SIP client at

My estimation is that FS in this case searches in SIP profile "internal" 
for all registered clients and when founds the one with IP 
it is used to route the call there using destination number for this 
outbound call.

Petr B.

Dne 29.05.2018 v 18:31 Petr Both napsal(a):
> Hi list,
> I'm already searching in FS manual several hours but cannot find the 
> solution.
> My task is to receive SIP call from remote SIP device (registered to 
> FS like User: 1005 at, using DIALPLAN route it back to SIP 
> channel with the same (or increased) destination_number back to the 
> remote SIP device. I.e. make such simple loopback in FS.
> Tested DIALPLAN extension is
> <extension name="Loopback">
>     <condition field="destination_number" expression="^(5000)$">
>     <action application="bridge" data="sofia/$${domain}/1005"/>
> </extension>
> The call is looped back to SIP channel but with destination_number 
> 1005. Is there any way to enforce to this bridged outbound call the 
> destination_number based on destination number of inbound call (which 
> comes with destination number 5000) ?
> Thank you in advance
> Petr B.
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