Meridian M3900 Series Telephone Accessories

Accessory Connection Module (ACM) Required for all snap-in accessories
M3902, M3903, M3904, M3905
This optional equipment is required to provide ports for all snap-in accessories.
The ACM Installs into the telephone footstand.
 
Snap-in Accessories (ACM Required)
Analog Terminal Adapter (ATA)
M3902, M3903, M3904, M3905
Analog connection to Fax Machines, PC Modems & Laptop Modems
External Alerter and Recording Interface
M3902, M3903, M3904, M3905
Call-in-progress or ring indication for bell or flashing light
Personal Directory PC Utility
M3904
Enter contents of the personal Directory into a PC and download to the telephone, or transfer contents of personal directory from one telephone to another via PC
Computer Telephony Integration Adapter (CTIA)
M3902, M3903, M3904, M3905 (Meridian 1 only)
Dial telephone using Outlook or ACT (or other TAPI-compliant software)
Full Duplex Handsfree Module
M3904 (phase 3 only)
Two way simultaneous conversations in Handsfree mode
 
Expansion Modules
Key-based Expansion Module
M3904 M3905
Adds 22 keys in any combination of lines or features.  Up to two key-based expansion modules may be installed, providing an additional 44 keys to an existing telephone.
Display-based Expansion Module
M3904 M3905
Adds 8 self-labeling (LCD) "soft keys" in 3 "pages" (or "layers"), for a total of 24 additional lines or features.  Fixed paging key for navigating between pages.