Inter-Tel 580.2100 SLM-4 Port Single Line Module Accessories It is an ideal switch

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Inter-Tel 580.2100 SLM-4 Port Single Line Module Accessories It is an ideal switchInter Tel SLM 4 Module Description: An Extension module designed for the Inter Tel Mitel CS5000 or HX 5000 phone systems. These cards add 4 analog extensions to your phone system. Inter Tel 580. 2100 Features: Adds 4 Analog Extensions (FXS Ports) Ports 1 2, 3 4 share physical ports Includes: (1) Inter Tel 580. 2100 SLM 4 Module