[cisco-voip] Delay on outbound international calls via FXO

Thu Mar 17 12:24:02 EDT 2011

Perhaps the telco will accept a terminating # from you, to tell them to stop waiting for digits? I don't think it's a "standard" per se, but is a common enough practice that it might be worth a shot. I'd try sending the # out the FXO and see what happens. That could've been what the previous PBX was doing.

--
Mike Norton
I.T. Support
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From: Louis Koekemoer (ZA) [mailto:Louis.Koekemoer at za.didata.com]
Sent: March-17-11 3:55 AM
To: Nick Matthews
Cc: Norton, Mike; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] Delay on outbound international calls via FXO

I established that it definitely the Telco causing this delay outbound for international calls for about 15-23s before the call is starting to ring on both IP Phone and the Called Party's phone. Now the next question:

Is there any way I can configure H323 gateway to provide ringback during this time, as I suspect that must have been what the previous PABX was doing?

Regards

Louis Koekemoer
Senior Cisco IPT Systems Engineer
Converged Communications
Dimension Data (South Africa)

Tel:         +27 (11) 575 6560
Fax:        +27 (11) 576 6560
Cell:       +27 (71) 680 8790
Email:    Louis.Koekemoer at za.didata.com<mailto:Louis.Koekemoer at za.didata.com>
Planned travel - 13/03/2011 - 18/03/2011
For further information about Dimension Data, please go to www.dimensiondata.com<http://www.dimensiondata.com/>
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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Louis Koekemoer (ZA)
Sent: 17 March 2011 05:44 AM
To: Nick Matthews
Cc: Norton, Mike; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Delay on outbound international calls via FXO

CCM4.1 with 2801 gateway. 8 x FXO lines. I'm using H323 at this moment. Outbound calls to international calls only, 15-23s before it starts ringing on either phone. Inbound I PLAR all calls to 1 specific number. IP phone will ring, and when you answer there is about 3s delay while other phone(Mobile) still ring before you can say hello.

Regards

Louis Koekemoer
Senior Cisco IPT Systems Engineer
Converged Communications
Dimension Data (South Africa)

Tel:         +27 (11) 575 6560
Fax:        +27 (11) 576 6560
Cell:       +27 (71) 680 8790
Email:    Louis.Koekemoer at za.didata.com<mailto:Louis.Koekemoer at za.didata.com>
Planned travel - 13/03/2011 - 18/03/2011
For further information about Dimension Data, please go to www.dimensiondata.com<http://www.dimensiondata.com/>
P Before printing this email please think about the environment

From: matthn at gmail.com [mailto:matthn at gmail.com] On Behalf Of Nick Matthews
Sent: 17 March 2011 12:51 AM
To: Louis Koekemoer (ZA)
Cc: Norton, Mike; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Delay on outbound international calls via FXO

If you're dialing from an FXS port off that router, and it's not MGCP or SCCP controlled, you wouldn't be using the route patterns.

Although in that case, entering # should still work.  If you describe the call flow with devices and protocols it may be easier to help.

-nick
On Wed, Mar 16, 2011 at 2:31 PM, Louis Koekemoer (ZA) <Louis.Koekemoer at za.didata.com<mailto:Louis.Koekemoer at za.didata.com>> wrote:
I wish I had a normal analogue phone...

Regards

Louis Koekemoer
Senior Cisco IPT Systems Engineer
Converged Communications
Dimension Data (South Africa)

Tel:         +27 (11) 575 6560<tel:%2B27%20%2811%29%20575%206560>
Fax:        +27 (11) 576 6560<tel:%2B27%20%2811%29%20576%206560>
Cell:       +27 (71) 680 8790<tel:%2B27%20%2871%29%20680%208790>
Email:    Louis.Koekemoer at za.didata.com<mailto:Louis.Koekemoer at za.didata.com>
Planned travel - 13/03/2011 - 18/03/2011
For further information about Dimension Data, please go to www.dimensiondata.com<http://www.dimensiondata.com/>
P Before printing this email please think about the environment

From: Norton, Mike [mailto:mikenorton at pwsd76.ab.ca<mailto:mikenorton at pwsd76.ab.ca>]
Sent: 16 March 2011 08:31 PM

To: Louis Koekemoer (ZA); cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] Delay on outbound international calls via FXO

As with all FXO problems, it would be prudent to perform an easy 20-second test to see if the cause is perhaps the telco's side, before getting all carried away with stuff on the gateway. If you unhook and gateway and plug in an analog phone to the line and dial the same digits, is there delay?

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Chris Ward (chrward)
Sent: March-16-11 7:36 AM
To: Louis Koekemoer (ZA); Ryan Schwab; cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Delay on outbound international calls via FXO

I don't know, 15s is usually a pretty dead give-away... Is this UCM or UCME? What type of GW and what protocol is controlling the FXO port?

If its CUCM, a detailed set of traces would show pretty clearly what the issue is.

+Chris
Hosted Collaboration Solution TME

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Louis Koekemoer (ZA)
Sent: Wednesday, March 16, 2011 12:07 AM
To: Ryan Schwab; cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] Delay on outbound international calls via FXO

It is not inter digit time out, as we have another 20 sites of the cluster. Also with local and mobile calls it is instant. I have 2 patters for international. 0.00! and 0.00!# obviously discarding predot.

Regards

Louis Koekemoer
Senior Cisco IPT Systems Engineer
Converged Communications
Dimension Data (South Africa)

Tel:         +27 (11) 575 6560<tel:%2B27%20%2811%29%20575%206560>
Fax:        +27 (11) 576 6560<tel:%2B27%20%2811%29%20576%206560>
Cell:       +27 (71) 680 8790<tel:%2B27%20%2871%29%20680%208790>
Email:    Louis.Koekemoer at za.didata.com<mailto:Louis.Koekemoer at za.didata.com>
Planned travel - 13/03/2011 - 18/03/2011
For further information about Dimension Data, please go to www.dimensiondata.com<http://www.dimensiondata.com/>
P Before printing this email please think about the environment

From: Ryan Schwab [mailto:schwaby81 at shaw.ca<mailto:schwaby81 at shaw.ca>]
Sent: 15 March 2011 10:39 PM
To: Louis Koekemoer (ZA); cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: RE: [cisco-voip] Delay on outbound international calls via FXO

Experiencing inter-digit timeout?

What do you route patterns and/or dial-peers look like?

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Louis Koekemoer (ZA)
Sent: March-15-11 2:26 PM
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: [cisco-voip] Delay on outbound international calls via FXO

I have an issue with outbound calls in Dubai on FXO via H323. Only international calls. I would call any number internationally, and it would start counting the seconds on the phone and after about 15s it only starts ringing. All this time it is quiet.

Any suggestions?