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Unknown CLI on IOS VoIP gateway

We have 2610 as a VoIP gateway (2 BRI), Works fine.

But if there is a call from a person, without a CLI number, The ip-phones display the line-number of the ISDN line connected to the 2610.

We do not want that, we prefer a "unknown number" statement on the IP-phone. Does anyone know how to fix this ?


Re: Unknown CLI on IOS VoIP gateway

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If anyone else in the forum has some advice, please reply to this thread.

Thank you for posting.

Cisco Employee

Re: Unknown CLI on IOS VoIP gateway

Use the answer address command under the dial-peer to set this.


Re: Unknown CLI on IOS VoIP gateway

Best way to fix this is to add the following dial-peer/s as the very first dial peer in the router config -

dial-peer voice 1 pots


incoming called-number .

port 1/0 <--- port number of BRI port, change as necessary


dial-peer voice 2 pots <--- add this dial peer as nessary


incoming called-number .

port 1/1


This will enable DID on the BRI ports, and if there is no CLID from the exchange, it will ensure the calling number passed to the CM is a null value.

You need to delete the old dial peers, add the above 'dummy' dial peers then repaste all the original dial peers to ensure these dial peers are the first ones in the list.