KX-UT Series
KX-UT133, KX-UT136, KX-UT248 and KX-UT670
Installation Guide Savi 7210 +3.5mm EHS on Panasonic phones
Install a Poly Savi 7210 on a Panasonic KX-DT543
This guide explains how to connect a Poly Savi 7210 using the 3.5 mm EHS cord so you can answer and end calls directly from the headset. The Panasonic handset remains fully usable, and no mechanical HL10 handset lifter is required.
Before you begin
Important: Use the 3.5 mm EHS cord designed for compatible Panasonic phones. The APV-63 is a different accessory; do not substitute it simply because its plug looks similar.
Required equipment
| Item | Required equipment or setting |
|---|---|
| Headset system | Poly Savi 7210 Office base, headset and Poly power adapter |
| Audio connection | Telephone interface cable supplied with the Savi 7210 |
| Remote call control | Poly 3.5 mm EHS cord — Poly 84757-01 / HP 85R17AA |
| Telephone | Panasonic KX-DT543. Confirm the model number on the label underneath the phone. |
Compatible Panasonic phone models
The Poly 84757-01 / HP 85R17AA 3.5 mm EHS cord supports the Panasonic models listed below. It provides remote answer and end-call control from a compatible Poly wireless headset without a mechanical handset lifter.
KX-DT Series
KX-DT521, KX-DT543 and KX-DT546
KX-NT Series
KX-NT543, KX-NT546, KX-NT553, KX-NT556 and KX-NT560
Before ordering: Confirm the exact phone model and headset compatibility. EHS operation may also require specific programming in the Panasonic telephone system.
Installation steps
Turn off power to the headset base
Disconnect the Savi power adapter. Leave the Panasonic handset on its cradle. Do not disconnect the telephone line from the PBX unless instructed by your technician.
Connect the telephone interface cable
Connect the modular plug to the telephone interface jack on the Savi base. On the phone, remove the coiled handset cord from the handset jack, connect the interface cable to that jack, and then connect the handset cord to the interface cable’s junction box. Push each modular plug in until it clicks.
Connect the 3.5 mm EHS cord
Connect one end of the Poly 84757-01 / HP 85R17AA cord to the jack on the Savi base marked with the handset-lifter or EHS symbol. Connect the other end to the Panasonic 3.5 mm EHS port. Do not force this plug into the phone’s separate 2.5 mm headset audio jack.
Set the controls underneath the Savi base
Begin with the configuration switch in position A. Set the microphone volume to 2 and the listening volume to 3. These are starting settings; adjust them during a test call if necessary.
Complete the first charge
Reconnect the Poly power adapter. Place the headset correctly in the charging cradle; the battery icon on the front of the base should flash green while charging. Charge the headset for at least 20 minutes before the first test. On the first day, leave it in the cradle until the indicator shows a full charge. Then move the headset power switch to the On position.
Test remote call control
Call the Panasonic extension from another telephone. Confirm that the headset rings. Press the call button once to answer without lifting the handset. Speak and listen, then press the call button again to end the call.
Daily use
| Action | Headset control | Expected result |
|---|---|---|
| Answer a call | Press Call once | The telephone goes off-hook and audio is sent to the headset. |
| End a call | Press Call once | The line is released and the telephone returns to standby. |
| Place a call | Press Call, then dial | You should hear a dial tone before dialing. |
Troubleshooting
| Problem | What to check |
|---|---|
| No dial tone | Check the power, headset-to-base pairing and all modular connections. Begin with the configuration switch at A. If necessary, try positions A through G one at a time and keep the position that provides the clearest sound. |
| The phone rings, but the headset does not | Reconnect both ends of the 3.5 mm EHS cord. Confirm that it is Poly 84757-01 / HP 85R17AA and is connected to the EHS ports, not the Panasonic 2.5 mm audio jack. |
| The call button does not answer or end calls | Check the 3.5 mm EHS connection and restart the Savi base. If the problem continues, the system administrator may need to enable EHS or headset operation in the Panasonic PBX or telephone programming. |
| You hear the caller, but they cannot hear you | Position the microphone boom about two finger widths from the corner of your mouth. Increase the microphone volume underneath the base by one level. |
| Sound is too loud or the caller hears an echo | Reduce the microphone or listening volume underneath the base by one level. Change only one setting at a time, then test again. |
| Buzzing or interference | Move the Savi base away from the telephone and other electrical equipment. For testing, connect the power adapter directly to a wall outlet. |
Final installation check
- The handset operates normally when lifted.
- The headset receives the incoming-call ring alert.
- The headset call button answers and ends calls.
- Both parties hear each other clearly at a comfortable level.
- The cords do not prevent the telephone from resting flat and do not place tension on the plugs.
Technical note
The KX-DT543 has an integrated EHS connection compatible with Plantronics equipment. Its separate headset audio jack is 2.5 mm; the 3.5 mm accessory connection is used for electronic hook-switch control. Exact programming may vary depending on the Panasonic PBX and its configuration.