Dialing into another switch's auto attendant through isdn trunk ??

[beeper0358]

Hi, My system is a G3si v12. When I dial 8342111 it goes through the normal routing which strips 34 and just sends 2111 to trunk#1 and I get the other switch's auto attendant which is normal. But when the number is coming from our cisco call gateway to the isdn trunk and pass the same 4 digits to trunk#1 the operator answers instead of the other switch's auto attendant. I verified the digits coming from the isdn trunk is correct.

I tried changing trunk#1's COR similar to my desk phones COR and it is still not ending up to the other switch's auto attendant, but when I dial from my desk phone it goes through. Any ideas??? appreciate the help!

 

[beeper0358]

What I've noticed is that trunk to trunk transfers or vdn numbers rings the other switch's operator instead of their auto attendant. Is this a system feature thing? Can the other switch administrator change something to allow the call to end to the designated number?