Unable to Assign DID Rec'd #

[ElecEng]

I have a MICS with 4.1 software. In the past I've added DIDs. My rec'd length=4 and my DN length=3. I go into Line 169 (unused at this point),Trunk/Target Line Data, Target Line and have the Line Type set to Public. When I try to change the Rec'd # from "none" to 3037 (one of my available DID's), the system will only allow me to enter 3 digits.

All other sets on the system have 4 digit rec'd #'s shown.

Any thoughts?

Thanks

 

[ElecEng]

Ignore the previous posting. Turns out that the other person who programs assigned a block of DID's without updating the master list. Once I found a "free" number, the system accepted all four digits.