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Vertical Summit 4COx8 Hybrid Extension Board (VS-5032-48)
Vertical SBX IP 320 Digital Expansion Card (3x16) (4032-16)
Vertical SBX IP 4-Port VoIP Expansion Board (4037-10)
Vertical Summit 4COx16 SLT Expansion Board (VS-5033-416)
Vertical SBX IP T1/PRI Interface Board (4035-00)
Vertical SBX Modular to 25 Pair CO/Station Install Cable (4099-00)
Vertical Summit PRI Interface Board (VS-5035-00)
Vertical Summit Installation Cable (VS-5099-00)
Vertical SBX IP T1/PRI Interface Board with CSU (VC4035-00)
Vertical Summit Modem Unit (VS-5030-00)
Vertical Summit VM & VoIP Expansion Resource Board (VS-5080-00)
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)