I have a site with number range 2xxx pointing out of a mgcp contolled E1 circuit. I also have some 2xxx numbers on the callmanager. The client would like to change 2390 incoming to 2490. I have tried to configure a translation pattern but it says it conflicts with the 2xxx digit pattern, any help would be great.
Try creating a special partition specifically for 2390 (like Translated_PT). Place "Translated_PT" in the Calling Search Space used by MGCP gateway (which should NOT be the same CSS used by any other device or don't do what I'm recommending). Next, create a translation pattern for 2390 using that new partition. For the calling search space of the translation pattern, use the one used by your phone devices. I'm assuming 2490 would be using a partition that your phone devices have permissions to call.
I would hope this is a one time thing and not something you have to do for lots of D.I.D.s...I wouldn't recommend my solution for a range of extensions. I would force a change of either D.I.D.s or internal extensions.