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Replacement bases for the newer IP400 series phones can be found here - Shoretel IP400 Replacement Phone Base (420
Does not support message waiting indication
Canadian Version
Multi-Line Dispaly
The 3C10403A features 10 soft keys
Adtran Atlas 550 24 Channel Voice Compression Module 1200312L3 Routers Replacement bases for the newerAdtran Atlas 550 24 Channel Voice Compression Module 1200312L3 Description: The Adtran Atlas 550 voice compression module (1200312L3) 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
