Nortel Direct Inward Dial (DID) Trunk Cartridge
- (Model# NT5B37GA)
- Norstar DID Trunk Cartridge NT5B37GA-93 provides (4) 2 wire direct in dialing trunks. Requires one slot in a copper or fiber trunk module. Compatible with Norstar DR4 or DR5 & MICS systems all releases.
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