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1st Televoice is premiering our customer rewards program called BONUS BUCKS. For every purchase with us, your account will accrue points to spend towards equipment or cash in. Don't miss out on this new program, check back for more details.
NTBB24
Product Description
This Norstar cartridge uses the "B" slot in the MICS unit. It provides clocking service that is required for digital networks. It is required if DTI cartridges or ISDN-BRI interface cartridges are being used. Only one Services cartridge is required per system. Only for use on MICS and not compatible if Copper Expansion Upgrade Cartridge is installed.
