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The built-in speaker permits on-hook dialing and makes it easy to access voice mail
Supports digital signal processing of Pulse Code Modulation (PCM) signals on each port to detect tones and other signals
Bulit-In 2-Port Ethernet Switch
It requires an open card slot
Compatible with any Mitel Telephone System that uses the DNIC Card
ESI PC 5000-0418 Communications Server 612 PC Card (Refurbished) Siemens The built-in speaker permits on-hookKey Features: CS 612 Provides circuits to connect up to six analog loop start CO lines and 12 Digital Feature Phones Ground start CO lines are not supported This card uses 12 stations ports and 6 CO ports Compatible with: ESI Communication Server 200 ESI Communication Server 600 ESI Communication Server 1000 Refurbished
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