My ear piece in the handset is not audible. this set i bought in USA. and not used in india for long time. Now i started using this , base unit speaker is working, handset speaker is also working but in my ear piece is not audible. Even after i increaded the voulme level to high. can you pls help me

Hello and Welcome to fixYa!

Software End Possibilities:
It happens some times that due to some unknown reasons, the voice is reduced to a low range in order to protect the speaker from getting damage... Try checking the voice/ear piece volume settings and if the problem still persists..Try resetting the handset to FACTORY DEFAULTS ( Do make sure to back up your personal data before doing so).
Hardware End Possibilities:
If the handset is ever repaired or is in use for a long time, there are possibilities that the ear piece might had dust particles trapped on its diaphragm or even physical contacts may be disturbed.. Check for the dust particles and proper physical contacts....

Have a Nice day,


Concerned,

Remove then replace the batteries from the hand set. You should now get dial tojo.

If “No link to base. Move closer to base, try again.” is displayed
even when using the handset near the base unit, the handset may have lost communication with the base unit. You need to re-register the handset to the base unit.
• Make sure the base unit is not being used.
• Have both handsets and base unit nearby during registration.
• Follow steps 1–3 listed below. You have about 1 minute to complete them.
• Confirm the extension number of the handset which has lost the communication by placing the handset on the base unit or charger.
If you re-register the handset using the other handset’s extension number, the other handset will not function.
• If the handset beeps 3 times and “Error!!” is displayed, an error occurred. Try again from step 1.
• You can stop registration by pressing [OFF] on the handset, and pressing [LOCATOR/INTERCOM] on the base unit.

1 Base unit: Press and hold [LOCATOR/INTERCOM] until a beep sounds.
• The CHARGE indicator flashes.

2 Base unit: Press the extension number [1] (handset symbol 1 ) or [2] (handset symbol 2) of the
handset which has lost the communication.

3 Handset: Press and hold [FLASH/CALL WAIT] until “Handset Registering” is displayed.
• When registration is complete, a beep sounds from the handset and the display shows the number.
• Wait for 20 seconds after registration is complete while the handset establishes communication with the base unit.


• If the handset beeps 3 times and “Error!!” is displayed, an error occurred. Try again from step 1.
• You can stop registration by pressing [OFF] on the handset, and pressing [LOCATOR/INTERCOM] on the base unit.

There isnt a socket to connect the additional handsets because it is not needed. The handsets all use a single line by connecting to the base unit. You need to make sure the additional handsets are registered to the base unit.

For how to do this and anything else look in the manual which can be downloaded for free at http://phone.manualsonline.com/manuals/mfg/british_communications_bt/bt_mango_1_2.html

handset to baseset registration code

Short answer:
No. This model of phone can only support 4 handsets. If you need more than that, you will need to have a second base unit.

Detailed answer:
One of my handsets went bad, and I just bought complete DCT748-4 package from a seller on eBay for a very good price. This set was used, but in very good condition. I didn't need the whole set - just one handset - but like I said, it was a good price. Anyway, I began by telling my old base unit to de-register handset #2 (the failed unit). However, I then found that I could not register the "new" handset with my old base unit because it was already registered to the "new" base unit. So, I first had to apply power to the "new" base unit and de-register the handsets. Then, I placed one of the "new" handsets onto my old base unit, and it said "Handset Registering ..." and registered just fine. Just for the fun of it, I placed one of the other spare handsets into my old base unit. It said "Hanset Registering ..." but then it beeped and said "Registration Failed." This is because I already had 4 handsets registered to my base, and the base can not handle a fifth handset.

Cancel the old handsets registration at the previous base unit if desired.
For additional handsets, you must register each of them at the new base unit. Only one handset can be registered at a time. A handset will be assigned anextension number at registration.

Make sure the base unit and the other handsets are not being used. Program the same way as the extra handset you bought.

Registration must be completed within 1 minute.

FROM PAGE 38 of the manual:

If "No link to base. Move closer to base, try again" is displayed, even when using the handset near the base unit, the handset may have lost communication with the base unit. You need to re-register the handset to the base unit..
HAVE BOTH THE HANDSET AND THE BASE UNIT NEARBY DURING REGISTRATION.
FOLLOW STEPS 1 AND 2 LISTED BELOW. YOU HAVE ABOUT 1 MINUTE TO COMPLETE THEM.

1-Base unit:
Press and hold [HANDSET LOCATOR] until the CHARGE indicator flashes.
2-Handset:
Press and hold [FLASH/CALL WAIT] until "Handset Registering" is displayed.
-When registration is complete, a beep sounds from the handset.
-Wait for 20 seconds after registration is complete while the handset establishes communication with the base unit.

If... the handset beeps three times and "ERROR!" is displayed, an error occurred. Try again from step 1.
You can stop registration by pressing [OFF] on the handset, and pressing [HANDSET LOCATOR] on the base unit.

document.write(parent.prscreen) Try this to get it working. Relocate the handset(s) closer to the main base.

Check for any lights on the base including charge, intercom, and channel lights (if applicable to the model).

Re-cradle the handset on the base for 15 seconds. Lift the handset and press PHONE.

Unplug the AC adapter from the main base unit and take out the battery from the handset. Leave it unplugged for 15 seconds. Plug the handset battery in and re-cradle the handset. Plug back the AC adapter in and wait for 15 seconds.

Try to de-register the handsets by following the steps below:

1. Using the soft keys on the base located below the base screen, press MENU
2. Press the down arrow once until BASE SETTINGS is highlighted.
3. Press the OK soft key.
4. On the base, press MUTE 3 times and FLASH twice. This will
deregister the unit.

Below are steps on how to re-register the handsets:

1. Make sure to charge the handset battery pack at least 12 hours.
2. Using the soft keys on the base located below the base screen, press MENU.
3. Use the up or down arrow keys to select DISPLAY BASE ID.
4. Press OK. The base screen will display the 15-digit Base ID
code for about 30 seconds, then the unit returns to the idle
screen. Write down the Base ID code on a piece of paper.
5. At the cordless handset, use the soft key to select NEW.
6. Enter the 15-digit Base ID code using the number keypad.
7. Use the soft key to select OK. The screen displays PLEASE
WAIT!.
8. After about 45 seconds, the screen displays FOUND BASE. If the handset displays BASE BUSY TRY LATER, the base is in
use.

Other products that use the 5.8GHz band can interfere with the use of this phone. These products or equipments include: radio towers, page towers, cellular Phones, other 5.8GHz cordless phones, intercoms, or monitors. If any of these are in the area, they may interfere with the performance of the phone. Try relocating the phone.

Video displays, Televisions or Personal Computers can cause
interference on the phone if it is plugged in electrically with one of this equipment (typically on a power strip or extension cord). Please relocate the phone to an AC outlet without any other major appliance plugged in.
You can also relocate the base to another room.

Relocate the phone out of the kitchen area. Appliances may cause interference.

If the charge light does not remain on, clean the handset and base charging contacts using a pencil eraser. If it comes on after cleaning the contacts, you may need to charge the unit for 10 hours.

Make sure that the AC power cord is securely plugged into the base. If unsuccessful, plug the unit into a different known working outlet or turn on the switch on the power strip.

I was using this site while trouble shooting this in the US...
If the customer has DSL with filters in the same system go back to the NID and Isolate the DSL,
test the caller id and call waiting caller id. If this works you have Data Bleed coming from the DSL.
Make sure there are not two sets of filters on the line. Tjis customer had a filter with the DSL modem.

Doing this we just fixed an on going problem for a field tech who was the second callout on a customer issue.