provided by Star2Billing S.L.

Hello.
I looked here and found topics that are similar to my problem.
but I do not think my problem?
The problem is as follows:

I am trying to make calls, but

== Using SIP RTP CoS mark 5
-- Executing [98978357217@a2billing:1] Answer("SIP/8978357217-0000000a", "") in new stack
-- Executing [98978357217@a2billing:2] Wait("SIP/8978357217-0000000a", "") in new stack
-- Executing [98978357217@a2billing:3] AGI("SIP/8978357217-0000000a", "a2billing.php") in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/a2billing.php
-- <SIP/8978357217-0000000a>AGI Script a2billing.php completed, returning 0
-- Executing [98978357217@a2billing:4] Wait("SIP/8978357217-0000000a", "") in new stack
-- Executing [98978357217@a2billing:5] Hangup("SIP/8978357217-0000000a", "") in new stack
== Spawn extension (a2billing, 98978357217, 5) exited non-zero on 'SIP/8978357217-0000000a'

I tried:


cp -rf /usr/src/A2Billing/common/lib/ /var/lib/asterisk/agi-bin/

ls -la /var/lib/asterisk/agi-bin/a2billing.php
-rwxr-xr-x 1 asterisk asterisk 53933 Jan 20 15:12 /var/lib/asterisk/agi-bin/a2billing.php

Please help.
What should we do?