I have one Freeswitch 1.6 server installed on CentOS 7.2 64-Bit.

I configured one gateway to make outbound calls and one extension. Registered that extension on softphone dialed a number. Its working. 

Extension => Freeswitch => Gateway => Mobile =======Working

After that registered same extension on an Asterisk server and from Asterisk dialed a number and then also working. 

Asterisk(with username/password) => Freeswitch => Gateway => Mobile ========Working. 

Now I am trying to remove registration from Asterisk and send directly call to Freeswtich and on Freeswitch check if that IP is allowed then allow IP to make call. I added Asterisk IP in Domain ACL on Freeswitch but when call called from Asterisk, its going in Public context and considered as a incoming calls. 

How I can add IP based authentication for end user and route call to configured gateway?

 

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