Translation pattern with wildcards.

[gregsporton]

Hi all,

I'm having a strange problem with translation patterns on a customer site using ccm 3.3.3. They have a remote site that uses extensions 8700-8799. I need to force calls from the head office offnet to the remote site whilst they wait for a WAN upgrade.

In order to achieve this I added a translation pattern as below:

If someone dials 87xx, prefix 06281 to the number, thus forcing the call offnet. The only problem is that it doesn't work and the number is not expanded.

However if I add a translation pattern specifically for one of the remote extensions without wildcards, eg 8710, the translation works as expected.

Any ideas????

[mcotrone]

This is a normal situation because the CCM routes calls with the longest exact digit match. The real phone numbers of 8700-8799 have a longer match than the 87XX wildcard entry.

Basically with a CSS the callmanager searchs through partitions. When the CSS finds the 87XX it continues to search on since it is a wildcard thus finding the longest match of digits at 8700 - 8799. This is normal processing for Call Manager.

I usually will add the translation pattern like you are doing and then Create a temporary Partition called (migrate-pt). I would then use BAT to add the phone lines of 8700-8799 from the exising internal (all phones) partition to this migrate-PT. Make sure you DO NOT ADD the migrate-PT to any of your normally used CSS's. The goal of this is when the CSS searches for the 8700-8799 it ONLY finds the translation pattern that is sitting in the internal (all phones) partition instead of finding the 8700-8799 phone lines.

Think of this as taking your phone line 8700-8799 and moving them from your normal dialing plan to a seperate no-routable dialing-plan.

Then once you are ready to move the phone lines back over you can again use BAT to move 8700-8799 to the normal internal (all phones) partition.

Let me know if this makes sense.

Thanks

Mike

[gregsporton]

Hi Mike,

Makes perfect sense to me, no different to IP routing really! Pitty there is no admin distance you can add to extensions :)

Thank-you for the info, I'll give this a go in the lab then have a chat with the customer.

Thanks again,

Greg.

[mcotrone]

Exactly like routing Greg! Longest Match :)

email me at mcotrone@netdsi.com if you have any other questions about this in the lab.

Mike