5
Telephone Compatibility
Because not all telephone handsets are wired in a standard way, we have
provided a compatibility switch to adjust the compatibility:
1. Press & hold the “on-‐hook” switch on your telephone or place the
handset in the cradle.
2. Adjust the switch by turning it one “click” to the next setting.
3. Release the “on-‐hook” switch or pick up the handset and listen for a dial
tone.
4. Continue this process until you hear a dial tone and the microphone is
functional. Once you have located the proper setting, make a note of it
in the event it is changed accidentally or you use your ITGS-‐400 on a
different phone.
NOTE:
The ITGS-‐400 cannot be used on any telephone where the keypad is
located in the handset.
Troubleshooting
If, after installing your ITGS-‐400 amplifier, you do not have a dial tone or
the person you called cannot hear you, take the following steps:
1. Check that all connections are plugged in properly.
2. Make sure power is connected.
3. Either disconnect the unit or use another phone and check that your
phone service is working properly.
4. Change the compatibility setting dial located on the bottom of the unit.
Specifications
Dimension: 70mm(L) x 36mm(D) x 114mm(H)
Accessories:
AC Adapter-‐ Input: AC100-‐240V~ , 50-‐60Hz ;
Output: DC9V
9-‐volt Battery
Telephone Handset Short Phone Cord
Summary of Contents for ITGS-400
Page 1: ...User Manual Model ITGS 400 Phone Amplifier...
Page 9: ...9 400110300E...
