How to correctly set destination-pattern in CUCME?

Question

VoIP

Good afternoon.
There is CUCME with E1 and voip trunks, it is necessary to configure the routing of outgoing calls - send some to pots, the rest to voip. I wrote something like this:
pots
destination-pattern [2-3]....
destination-pattern 7[2-9].........
destination-pattern 810[1-9].... T
voip
destination-pattern ...
destination-pattern 8[2-9].........
destination-pattern [^810][1-9]......T

there seems to be no intersection anywhere, but people say that it will not take off - the desired peer will eventually be selected by the beginning, and not by the beginning + length.
How to correctly set the order of processing?

Answer 1

Yes, it seems that the tsiska analyzes only at the beginning.
How to ask? Describe everything with unambiguous prefixes.
Write down your routing table?