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2x Controller Card without Modem P/N 1205288L2
Included With Each IP 5212 Phone:
The Adtran 1200754L1 is an Atlas 550 Dual RS-449/V
Re-establishes physical layer and Frame Relay signaling in the event of primary link failure
4) allow for greater capabilities for your Bizfon 680 system
Adtran Atlas 550 4 Channel Voice Compression Module 1200312L5 Accessories 2x Controller Card without ModemAdtran Atlas 550 4 Channel Voice Compression Module 1200312L5 Description: The Atlas 550 voice compression module (1200312L5) performs G. 723. 1 compression for four voice channels in frame relay applications. The card allows for four calls to feature compressed audio in order to save bandwidth. The card does not present any physical interfaces and is a plug on board for all user interface modules and the resource host module. By using only 1 6th the
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