Many time it had happend with me that i get a bearer capability mismatch between my gateway and service provider switch due to which the call didn/t mature
and during troubleshooting you run the command " debug isdn q931 " in the router and get a error similar to "Invalid information element contents and Incompatible destination"
This signifies that the bearer capability of the service provider switch and the voice gateway didn't match.
In order to resolve this kind of issue there is a option in the IOS gateway that you can overwrite the bearer capability using the IOS command in the voice-port config mode...
The command for this is
config−voiceport)#bearer−cap ?
This will give you option to overwrite the capability set....
and during troubleshooting you run the command " debug isdn q931 " in the router and get a error similar to "Invalid information element contents and Incompatible destination"
This signifies that the bearer capability of the service provider switch and the voice gateway didn't match.
In order to resolve this kind of issue there is a option in the IOS gateway that you can overwrite the bearer capability using the IOS command in the voice-port config mode...
The command for this is
config−voiceport)#bearer−cap ?
This will give you option to overwrite the capability set....
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