Wednesday, September 16, 2026

FreePBX GUI with Callcentric (PJSIP)

In CallCentric, add an 'extension'.  In my example I created extension 108, so my callcentric ID looks like 1777xxxxxxx108

Replace 1777xxxxxxx108 with your Callcentric 1777 number.

1> Add PJSIP trunk in FreePBX GUI

2> Under "GENERAL" tab

Trunk Name: CallCentric
Outbound CallerID: 1777xxxxxxx108 (OR a DID you have with Callcentric)


3> Under "PJSIP SETTINGS" tab

Username: 1777xxxxxxx108 
AUTH username (IGNORE)

Secret: (Your Callcentric password for your 1777xxxxxxx108 extension)

SIP Server: sip.callcentric.net

SIP SERVER PORT 5060


4> Under "ADVANCED" tab

Contact User: 1777xxxxxxx108
From Domain: sip.callcentric.net
From User: 1777xxxxxxx108
Match (Permit): 199.87.144.0/21,204.11.192.0/22        (This limits the IPS that can work for some additional security)
Send RPID/PAI: Both


5> Create an inbound route

Description = Callcentric and your number
DID Number = Callcentric extension
SET DESTINATION = whatever location you want the call to go to when it rings.  I'm testing with "Speaking Clock"


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