The A is for a single cabinet, B/B is for two cabinets and C/D is for 3 to 5 Cabinets.

So you will need the RCTUC and RCTUD BOTH! Watch the chip levels. C3 is Release 3 and C4 is Release 4. Either will work since it sounds like you will be programming from scratch...

Good Luck


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Toshiba Technical Support at: One Ring Telecom