I bought a panasonic dect 6.0 cordless phone from US on the way back to India. Everything else works absolutely fine but the caller id is not working . I spoke with airtel and MTNL but they say that its not a mistake at their end and i cross checked the same with a corded phone in which the caller id works fine. Please help me with a solution as i really love the phone and technology. Regards

by chance did you install the batteries for the ID to operate?

Caller ID standards are different in India and the USA, so Caller ID function will not work. You need to purchase a converter which converts from DTMF to Bell FSK standard.

Source

Good Luck!!!!!!!!!!

Well if the phone has been bought abroad and being used in India you will face this problem. this is because of the format of transmitting the caller id info being different. In USA it is STF and in India it is DTMF. You need a convertor in the phone line which is DTMF to STF. IF you find onw in Delhi pl let me also know.

The phone will not work with 220 V. And as an FYI, taking the unit out of the country will void your warranty.

Any Caller Id phone bought in USA will not show the id as the Caller id format in USA is FSK and in India it is DTMF. You need a caller id converter from DTMF to FSK. It is available online on www.ebay.in Just type DTMF to FSK converter and the item will be displayed. Right now it is avilable only with a seller in Bangalore and the price is Rs.589/- per piece. I bought it and it is working fine.

For people who have purchased cordless phone in usa and caller id is not working they should purchase fsk to dtmf converter at any local phone shop and caller id will start working.

Here is the article on various frequency used by various countries for caller id.

Hope this will help you out.

Detailed Product Description

There are 3 major caller ID specifications in the world: DTMF, ETSI FSK and Bellcore FSK. When users buy a foreign telephone devices(such as cordless phone, fax machine or computer telephony interface), may encounter the problems of non-match for caller ID standard. This will cause the device unable to display the caller ID. EX220 can solve this problem easily. This product can receive all 3 kinds of caller ID format, and convert to FSK(Bellcore or ETSI selectable) to match foreign telephone's standard.
EX220 has a rechargeable battery inside the device, during idle status, it gets power from the telephone line and recharge the battery, so no need to use or replace battery. Just plug one end to telephone line, and the other to the telephone device.
For example, if you live in Netherlands, Saudi or India, the caller ID standard is DTMF. You purchased a cordless caller ID phone from US(which uses Bellcore FSK standard), or from Germany(which uses ETSI FSK standard). You won't be able to use the caller ID feature. In this case, just get one EX220 and connect it between the telephone line and the cordless phone, your cordless caller ID phone will display the caller's number immediately.
Remark:
1. Telephone sets for UK and Japan standard are not applicable.
2. In some countries, users must subscribe to Telecom for caller ID service

Feature List
Caller ID Format Conversion --- Convert 3 kinds of caller ID(DTMF, Bellcore FSK or ETSI FSK) to ETSI FSK or Bellcore FSK(selectable)
Date/Time Stamp --- The DTMF caller ID doesn't content date/time stamp. User can set up clock of EX201, so each call will be sent with actual date and time stamp
Area Code Setting --- User can set up the area code, so the dial back feature can easily applied
Rechargeable battery powered by line --- Just connect to the telephone line, the built-in rechargeable battery can get power from the telephone line, no need any external battery nor power supply

News
Now, Multi-Line caller ID converter is available.

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.

I too purchased an Uniden phone for India. Everything except the caller ID works fine. The caller ID wont work as the technology used in India is different. Try purchasing a FSK to DTMF converter or a separate caller ID box.