- Compatible with VOIP, analog, digital, single-line and multi-line phones.
- Telephone Recorder Interface
- Patented optical sensor detects start and end of call.
- Connects telephone to voice logger (multi-channel telephone recording) systems.
- Amplified output (15dB) recommended for use with digital recording systems.
- Plugs in between handset and phone.
- Output on standard RJ-11 telephone jack for easy wiring to recorder.
- Plug in power supply included.
- Compatible with most business (digital or multi-line) phone systems using corded handsets.

The TRI-804SY Telephone Recorder Interface provides clear analog audio of both sides of the conversation to loggers from almost all digital, electronic or analog telephones that have modular connected handsets. The TRI-804SY detects handset On/Off-Hook, and mutes the handset and output to logger whenever the handset is On-Hook.

Notes: Compatible with most business (digital or multi-line) phone systems using corded handsets, not for use with headsets. For headset applications with similar features, see our TLP-104SY.