Features:
* Double 86-size backbox design, compatible with electrical standard, easy to install.
* There are two options: single call key (emergency) and double call keys (emergency + business consulting). It can be installed in wall or on wall ( with backbox ).
* One key start a call for target terminal, full-duplex communication, achieve simple operation, fast connection.
* Hand-in-hand connection design, it can be extended with 15 panels at most. The longest distance is 1200 meters with CAT5 cable. 24V DC power supply will be required every 6 panels or every 30 meters distance. With the additional power supply, the distance between intercom panel and controller can be 1200 meters.
* Built-in non-polarity MIC and amplifying circuit, realizes the high sensitivity field sound collection.
* Built-in 2W high-fidelity full frequency speaker, making the sound clear and loud.
* The panel has anti-tamper alarm function to ensure higher safety.
* High protection grade, adopting alloy material and anti-dismantle screw.
Specifications:

| Product Model | T-6717 | T-6716 |
| Environment Humidity | 20%~80% Relative humidity, without condensation |
| Weight | 0.6Kg |
| Size | 172 x 86 x 23mm |
| Power Output | 2W/4 Ω |
| Assist MIC Input Sensitivity( Unequilibrium ) | 10mV |
| Environment Temperature | -20 ℃ ~60 ℃ |
| Protection Level | IP55 |
| Power Dissipation | ≤ 3W |
| Electrical Interface | Stardand RJ45 input |
| Support Protocol | RS485 |
| Signal to Noise Ratio | >70dB |
| Harmonic Distortion | ≤ 1% |
| Frenquency Response | 80Hz~16KHz |