Call QoS issues

[ykhan]

Following is asmplefothe CLI output during Adaptive Hard Limit dialing. During manual dialing call quality is fine but in PD mode the agent and customer are facing a delay of about 10-15 seconds. The server load avg. is about 0.5-0.83 with two agents on.

-- Executing AGI("Local/9011441133050411@default-e636,2", "call_log.agi|9011441133050411") in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/call_log.agi
-- AGI Script call_log.agi completed, returning 0
-- Executing Dial("Local/9011441133050411@default-e636,2", "IAX2/joekhan@vitel-outbound/011441133050411|55|o") in new stack
-- Called joekhan@vitel-outbound/011441133050411
-- Call accepted by 70.87.18.51 (format gsm)
-- Format for call is gsm
-- IAX2/vitel-outbound-7 is making progress passing it to Local/9011441133050411@default-e636,2
-- Hungup 'IAX2/vitel-outbound-7'
== Everyone is busy/congested at this time (1:0/0/1)
-- Executing Hangup("Local/9011441133050411@default-e636,2", "") in new stack
== Spawn extension (default, 9011441133050411, 3) exited non-zero on 'Local/9011441133050411@default-e636,2'
-- Executing DeadAGI("Local/9011441133050411@default-e636,2", "call_log.agi|h") in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/call_log.agi
-- AGI Script call_log.agi completed, returning 0
-- Executing DeadAGI("Local/9011441133050411@default-e636,2", "VD_hangup.agi") in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/VD_hangup.agi
-- AGI Script VD_hangup.agi completed, returning 0
== Manager 'sendcron' logged off from 127.0.0.1
== Parsing '/etc/asterisk/manager.conf': Found
== Manager 'sendcron' logged on from 127.0.0.1
-- Executing AGI("Local/9011441132535503@default-a4a0,2", "call_log.agi|9011441132535503") in new stack
-- Launched AGI Script /var/lib/asterisk/agi-bin/call_log.agi
-- AGI Script call_log.agi completed, returning 0
-- Executing Dial("Local/9011441132535503@default-a4a0,2", "IAX2/joekhan@vitel-outbound/011441132535503|55|o") in new stack
-- Called joekhan@vitel-outbound/011441132535503
-- Call accepted by 70.87.18.51 (format gsm)
-- Format for call is gsm
-- IAX2/vitel-outbound-9 is making progress passing it to Local/9011441132535503@default-a4a0,2
-- IAX2/vitel-outbound-9 is making progress passing it to Local/9011441132535503@default-a4a0,2

I am wondering about the last two lines which seem to be using two channels for the same number highlighted in bold above. Can anyone help on this?

Thanks

[mflorell]

Depending on the carrier it can take 10-15 seconds to place an international call.

Could you explain in more detail exactly what the delay is?

[ykhan]

The calls get connected fine during manual dialing. When switching to auto or predictive dialing the agent hears a beep when call is connected but there seems to be a 5-10 sec. lag between the customer and the agent. The agent says "hello" two to three times and then a reply is heard from the customer.

[mflorell]

What zaptel timer are you using?