We had one PRI with 1000 DID's and we took one more with 500 DID.
First PRI Range 87875XXX (87875000 to 87875999) terminated on Gateway1 (MGCP).
Second PRI Range is 87872XXX (87872000 to 87872499) terminated on Gateway2.(MGCP).
In Route Group have added both. But when dialled through DID numbers of Second PRI, the number displayed is board number of the first PRI. (Algorithm - TopDown).
What needs to be done for displaying the DID numbers of Second PRI when dialed out side.
When dialled in ward (the DID number of Second PRI) the call comes fines.
if you sending out the right number to the provider, then it is something you need to check with your provider. had a chance to look at the debug isdn q931 to confirm it?