I have been receiving calls from this and related numbers for 3 weeks (2/4/09-2/26/09).  Other numbers:  406-541-8257, 406-541-8259, 406-541-8262, 406-541-8263, 406-541-8265.  They never leave a message, I've never answered, and once I was called at 6:39 a.m.

It's U of M trying to milk us for money.  I used to give to them but I won't now that they've started using telemarketing to get money.

We have been getting calls from 406/541-8259, ...8260, 8255, 8254, 8257.  It used to be every 4 days, now it's every night!!!  No msg, but I heard some giggling girls and I heard a few words.  I know it's not the U of M because it will say the U of MT as the call comes in; they don't leave a msg.  Besides, the U of M only calls every so often & I know it's them.  If you tell them when to call (or hours to avoid), they respect it.   I give to the U of M as it is a reputable and worthy university and I am an alumni.