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Music with two separte music channels
256 MB SDRAM
Built-in speaker
10 Programmable Buttons for Feature Access
Nortel Meridian M3900 Key Based Expansion Unit NTMN37 (Platinum/Refurbished) AT&T Music with two separte musicThe Meridian M3900 series expansion module provides 22 keys for any combination of lines and features. The Meridian M3904 and Meridian M3905 each support up to two expansion modules, for a total of 44 additional keys. The Key based Expansion Module is the perfect option for busy receptionists, administrators, and managers. More Information Mnfr. Part #: NTMN37 Use with your Nortel M1 Option 11C PBX system
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