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Highlighted
Explorer

ISD not working

We are facing problem with ISD calling, hen someone dials the ISD number it hit on VGW able to hear rings but then call drop..even if the dialing number is any call center number then also we hear 7-8 dialing tone & then call drop

CUCM 11.5

Cisco4321

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6 REPLIES 6
Highlighted
Cisco Employee

Re: ISD not working

Hello Vijay,

 

can you share the call flow? Let me know if this issue is for Inbound calls or outbound?

 

 

Regards,

Prassha3

 

 

Highlighted
Explorer

Re: ISD not working

Hello Prashant,

 

We are facing issue for outgoing ISD calls only other outgoing local & National calls are working fine  ...able to receive all calls no issue for incoming calls...

 

We are having CUCM 11.5 & VGW ...SIP Trunk is created in between ...

 

I am attaching Debug & sh run configuration...when we dial ISD number we are getting reng back tone after 7-8 ringback tone call cuts ...even we dial the International IVR number where e are hear ring back tone & not IVR prompt

 

 

 

Highlighted
Cisco Employee

Re: ISD not working

Hi Vijay,

 

In your GW debug i see there are 4 outgoing calls to your ISP, can you confirm which call we are having issue with 3rd or 4th. They all have their own and different disconnect cause codes.

 

Call details.

*****************

1st Call
*Dec 24 10:44:07.324: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x03AE
Calling Party Number i = 0x0181, '5006'
Called Party Number i = 0x81, '6565780000'
Cause i = 0x829F - Normal, unspecified

 

2nd Call
*Dec 24 10:44:56.432: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x03AF
Calling Party Number i = 0x0181, '5006'
Called Party Number i = 0x81, '006565780000'
Cause i = 0x8295 - Call rejected

 

3rd Call
*Dec 24 10:46:46.285: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x03B0
Calling Party Number i = 0x0181, '5006'
Called Party Number i = 0x81, '0006565780000'
Cause i = 0x8281 - Unallocated/unassigned number

 

4th Call
*Dec 24 10:48:09.451: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x03B1
Calling Party Number i = 0x0181, '5006'
Called Party Number i = 0x81, '00380487385080'
Cause i = 0x8090 - Normal call clearing

 

Thanks,

Kula.

Highlighted
Explorer

Re: ISD not working

Hello, below is the actual right dialing call..end user dial various way for self check

 

2nd Call
*Dec 24 10:44:56.432: ISDN Se0/1/0:15 Q931: TX -> SETUP pd = 8 callref = 0x03AF
Calling Party Number i = 0x0181, '5006'
Called Party Number i = 0x81, '006565780000'
Cause i = 0x8295 - Call rejected

Highlighted
VIP Rising star

Re: ISD not working

If this is the correct Number then make sure you are sending it it correct format as expected by the ISP. The Provider is rejecting the call so you need to check with them on what format is expected for international calls.
Highlighted
VIP Rising star

Re: ISD not working

I see that calls are getting rejected due to Unallocated/unassigned number which may indicated wrong number being dialed and Normal Call Clearing.

Thanks
Haris