I am looking for a system admin to install A2Billing on my CentOS 7 server.
I have tried installing it using the following guide but it did not work:
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I am receiving the following error when I make a call from a DID number:
pbx.c:4458 __ast_pbx_run: Channel 'SIP/DEFAULT-TRUNK' sent to invalid extension but no invalid handler: context,exten,priority=a2billing-did,s,1
I have tried this installation guide and some others on 2 different servers: one with Asterisk 16 and FreePBX 15, and the other with Asterisk 13 and FreePBX 14.
I'm looking for an engineer with A2Billing experience so that to work on this task of installing A2Billing.
It will be for the engineer to choose the server to use from the two I have mentioned above.
Kindly get back to me as soon as possible, as this task is quick urgent.