en bloc or digit by digit

[fran19422]

Hello, regarding how CUCME matches an outbound voip dial peer. Apparently it matches the entire string of digits"en bloc" to match the dial peer.

However in Jeremy Ciaora's CCNA Voice book he does a "debug voice dialpeer" which shows the CME router performing "digit by digit" processing.

Can someone please help me explain this apparent discrepancy.

Thanks kindly.

[islam.kamal]

Outbound dial-peers always match digit-by-digit, EXCEPT when they’re configured as ‘DID’ dial-peers (Direct Inward Dial).

On DID calls, also referred to as one-stage dialing, the setup message contains all the digits necessary to route the call, and the router or gateway should not do subsequent digit collection. When the router or gateway searches for an outbound dial peer, the device uses the entire incoming dial string. This matching is variable-length by default. This match is not done digit-by-digit because by DID definition, all digits have been received

http://www.cisco.com/en/US/tech/tk652/tk90/technologies_tech_note09186a008010fed1.shtml

rate if this is useful

[Tudor Adrian Negru]

This one was really bugging me as well :) Glad to finally "pin the tail on the donkey" so to say. Kind of confusing going by the book then running into the debug command and seeing how CME incrementally checks digits.

[Ayodeji Okanlawon]

It cal also be enbloc if it is a redial..All the digits will be passed enbloc to the gateway. Perhaps you saw debugs for a redial..