Adtran 1200328L1 Atlas 550 Quad FXS User Module
- Provides four FXS 2-wire analog RJ-45 modular connections
- Supports loop start, ground start, PLAR, and wink delay (for DNIS)
- Caller ID supported with FSK
- Each of the four interfaces may be mapped to an individual DS0 or dynamically switched based on phone numbers in dial plan
- Includes ring generator
- Does not support message waiting indication
|