Cannot make outside call (H.323 gateway and CUCM 6)

[9tysixuae]

I cannot make outside calls. I am using H.323 gateway configuration and CUCM 6. I have attached configuration file and debug file. I configured H323 gateway and route pattern in CUCM. Please let me know if this is a configuration issue or telecom issue.

[Marcelo Morais]

Hi 9tysixuae,

 your  dial-peer 100 is using G.711, check the codec that CUCM uses to this type of call.

Hope this helps.

[9tysixuae]

Thank you. I checked in CUCM gateway configuration and outside call route pattern configuration, I didn't saw any codec options. Can you please explain little more. Correct me if I'm wrong, to my knowledge that diap-peer is for calls going to CUCM, but here I am talking about calling outside number. We just need outside calls only.

[Marcelo Morais]

Hi 9tysixuae,

 check in CUCM Administration > System > Region for the codec. Every Device Pool has a Region that defines the codec.

Regards.

[9tysixuae]

Thank You. Yes the codec is G711. So I think its not related to codec, can you please tell me why the calls are dropping after it reached gateway. I am confused at that part. 

[afsal abdul gafoor]

Hello If you have dsp resources,try to configure a trancoder and assign to MRG, then MRGL and phones device pool.
 

In the debug saying SPI set up is success ,after that observing 34.

https://supportforums.cisco.com/discussion/11205911/fxo-troubleshooting-mgcp

AAG

[9tysixuae]

Thank You. I created a media resource group and list  added it into the device pool from the DSP available on gateway router. But not luck :-( 

If you don't mind can you tell me the impact of this for the out going calls. Hoping to keep the conversation going. Again thank you for your effort.

[Marcelo Morais]

Hi 9tysixuae,

 sorry, I was out ... any luck?

Regards.

[9tysixuae]

No Sir, no luck so far.

[Vivek Batra · Accepted solution]

Hi,

Try to check whether router can even off-hook the analog port or not to outdial the number. 

To verify this, change the 'destination-pattern 9T' to 'destination-pattern 9'. This should off-hook the port and due to PoTS dial-peer nature, it will strip 9 and caller should get network dial tone. 

Also change the router pattern in call manager to 9.

Thanks

Vivek

[9tysixuae]

Thank You all, for your kind support. When I configured 9 to get outside dial tone, I am not getting a continuous tone. So I called teleco and they redone the cabling and everything fine now :-). But earlier when checked with an analog phone its working fine that's why I am not able find this cable problem before.  

[Vivek Batra]

Glad to see the issue is resolved now.

Thanks

Vivek

[Marcelo Morais]

Ok 9tysixuae,

 try this:

dial-peer voice 100 voip
 destination-pattern 1..

dial-peer voice 10 pots
 preference 1

dial-peer voice 11 pots
 preference 2

dial-peer voice 20 pots
 destination-pattern 90562404721
 forward-digits 10
 port 0/0/0

I checked that you dial from DN 112 to 90562404721 ... the number that will leave from port 0/0/0 will be 0562404721, the leading 0 is correct or should be 562404721?

And use the following:

show voice port 0/0/0
show voice port 0/0/1
debug voice ccapi inout

Regards.

[Aditya Gupta · Accepted solution]

Hi 9tysixuae,

I can see that call is hitting the analog ports but from there on it generates error 34 which means circuit not available. You can try the following :

1. Plug Analog phone and verify if the circuit is fine ?

2. Try putting signal ground start on the voice port and see if that makes any difference.

Regards

Aditya Gupta

[9tysixuae]

Thank You. I came to same conclusion, when I go through debug, but I cannot understand why the calls are dropped at that level. And yes I connected a analog phone to lines and checked, they working fine. Also tried by changing the signalling to ground start at voice-port, but no success.

Please let me know if you have any suggestions, it will be a great help.