[asterisk-users] Handy tip for intercom with FreePBX & Grandstream phones

[Ken Williams]

We use intercom 100% inter-office.  To get FreePBX to do this with Grandstreams by default without having to create intercom or paging groups, just change the following line (line #58) in your extensions.conf from:

 

exten => s,10,Dial(${ds})                               ; dialparties will set the priority to 10 if $ds is not null

to:

 

exten => s,10,SIPAddHeader(Call-Info: answer-after=0) ;dialparties will set the priority to 10 if $ds is not null
exten => s,11,Dial(${ds})                              

 

Hope this helps someone in the future.

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