Maximum user lenght on extenions

hi all ,
I want to migrate from Elastix to Asterisk Now , but during the test I have a problem to add our extensions to the server
we have two group of extension first group is 100 to 350 (3 digit) and the second group is 352XXXXXX ( 9 digit ).
I am trying to add extension but asterisk is not permit to me add extinction with more than 6 digit , how I can change the maximum length of extinction ?

Thanks for your helping .

Omid Hosseini

Asterisk has no such limitation. Try asking on the AsteriskNow forum. Maybe that has.