ADDCOM ADD-699 User Manual Download Page 2

Setting up your handset lifter

1.  Lift the handset from your telephone.
2.  Secure the handset lifter over the loudspeaker 

on the phone, using the provided adhesive 
tape.

3.  Ensure the ring detection sensor is centrally 

placed over your phone speaker. 

4.  Plug the lifter cord directly into the port on your 

ADD-670/680 or C7 base station. You should now 
be able to answer/end calls using the answer 
button on your wireless headset.

Troubleshooting

When my phone rings, my lifter doesn’t raise my handset high enough?

Check the handset lifter is raising the handset off the hook switch. If the lifter height needs 
raising, you can change this with the slide switch (9), to either setting 2 or 3.

When my phone rings, I do not hear the ring indicator in my headset?

Ensure the line cable from the handset lifter is fully plugged into the correct port on your 
cordless headset’s base unit.

If this is unsuccessful, check the wireless unit power supply. You must have a minimum of 7.2 
volts for the ADD 670/680 and a minimum of 8.5 volts for the ADD-C7 in order for the lifter to 
function correctly.

Additionally, the ring volume on your telephone may need increasing to enable the 
microphone sensor to recognise the ringtone.

When my phone rings, lifter does not lift my telephone handset?

Manually lift the handset off the telephone base and press your headset button. If you 
cannot hear a dial tone, then check all connections on both units and also your headset 
configuration.

If you are still having difficulty after using these troubleshooting tips, please call your supplier 

for assistance.

www.addcom.com

Installation Location

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