Callback Setup

Good day,


Asterisk 1.8.7
Freepbx 2.9.0.7
Callback 2.9.0.4

How does the callback service work? because I tried to setup callback using the freepbx module, however the call is not returned.

Here is a log output for call to callback number 211:
== Using SIP RTP TOS bits 184
== Using SIP RTP CoS mark 5
– Executing [[email protected]:1] ResetCDR(“SIP/1000-0000003c”, “”) in new stack
– Executing [[email protected]:2] NoCDR(“SIP/1000-0000003c”, “”) in new stack
– Executing [[email protected]:3] Progress(“SIP/1000-0000003c”, “”) in new stack
– Executing [[email protected]:4] Wait(“SIP/1000-0000003c”, “1”) in new stack
– Executing [[email protected]:5] Progress(“SIP/1000-0000003c”, “”) in new stack
– Executing [[email protected]:6] Playback(“SIP/1000-0000003c”, “silence/1&cannot-complete-as-dialed&check-number-dial-again,noanswer”) in new stack
– <SIP/1000-0000003c> Playing ‘silence/1.ulaw’ (language ‘en’)
– <SIP/1000-0000003c> Playing ‘cannot-complete-as-dialed.gsm’ (language ‘en’)
– <SIP/1000-0000003c> Playing ‘check-number-dial-again.gsm’ (language ‘en’)
– Executing [[email protected]:7] Wait(“SIP/1000-0000003c”, “1”) in new stack
– Executing [[email protected]:8] Congestion(“SIP/1000-0000003c”, “20”) in new stack
== Spawn extension (from-internal, 211, 8) exited non-zero on ‘SIP/1000-0000003c’
– Executing [[email protected]:1] Hangup(“SIP/1000-0000003c”, “”) in new stack
== Spawn extension (from-internal, h, 1) exited non-zero on ‘SIP/1000-0000003c’