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Comdial DX-80/120 (COM4) 4-Circuit CO Line Module (7210) (Refurbished)
Comdial DX-80/120 (DPM8) 8-Port Digital Circuit Module (7220) (Refurbished)
Comdial DX-120 (DPM16) 16-Port Digital Circuit Module (7221) (Refurbished)
Comdial DX-80/120 (MDM) Modem Module (7249) (Refurbished)
Comdial DX-120 ISDN Card (T1/PRI Module) (7285) (Refurbished)
