I have a 3700 system currently with 2 cabinets. I am trying to add a 3rd and it won't come up. On the 3rd cabinet the 2 SLMO cards are green and when I pull a database it shows the 3rd cabinet and the 2 cards. But I can't get a phone to come up on those ports. Any Ideas? Thanks.

I don't know a thing about the 3700, however...

Does the 3700 have different software or hardware versions to allow the 3rd cabinet?

I know of a couple systems that you need a different version of software or CPU (Mother Board, et cetera).

You haven't mentioned what trouble shooting you have tried:

Swapping cards with a known working cards?
Connecting cables fully secure?
Resetting the System?

Dean

Can connect 3 boxes with Hipath 3700 system.

Let us know your trouble shootings.

Make sure you have enough license to add the extensions.

No licenses needed with SLMO's

If you have a manual read up about the timeslots, cabinets 2 and 3 share timeslots. The 72 timeslots which were allocated to 2 slots in cabinet 2 are now shared with another 2 slots in cabinet 3, if the number of ports on your cards add up to over 72 you won't be given a timeslot and so no dial tone. I could be wrong but, as I say its in the manual.