Samsung 4TM 4-Port Trunk Module (OS-703B4T/XAR)
Features
- Provides 4 loop start CO line interfaces with Caller ID circuitry
- The 4TM can only be installed into slot 4 of the main cabinet
- Detects ring reception
- Detects on/off hook
- Transmits dial pulse
- Includes Atlas 1-Year Warranty with Extended Warranty options available!