Question about Uniden TRU9480 Cordless Phone

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Caller ID not working in India

I have puchased this product from u.s.a and installed in India.

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Re: caller ID not working in India

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.

Posted on Jan 01, 2008

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Re: caller ID not working in India

I have bought a splitter from a shop in Chennai. Now I get caller id only phone number. No names.

Posted on Oct 04, 2008

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Re: caller ID not working in India

Not all USA electronics purchased in the USA will work with foreign systems. It's because of the different software or system requirements in each foreign country.  They are not universally standardized worldwide.

I've experienced the same problem moving to Thailand.

You might try downloading any firmware updates for the phone if they are even available.  And I'm not sure they are available but you should try anyway.  If not, nothing can be done except purchase a phone designed to be used in India.

Posted on Oct 27, 2007

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Caller ID not working


I don't think the problem is the FSK vs. DTMF. The manual even states that the caller ID is generally received after the second ring. This is true in America. I lived in India for four months and I never ran into the problem there so... I just can't say how your provider sends the caller ID. It may be that the line is being interfered with. Do you have a DSL line attached to the same device. If so make sure that there is a filter between you phone and its connection.

I am assuming that you tested your line with the other equipment connected to the same location. You may want to reduce the problem to the simplest configuration by connecting directly to the line only no other equipment. If it works add the other equipment until the caller ID stops again. Then you know what is interfering. If you have a monitor set you could listen to the DTMF being sent make sure it is coming between the first and second ring. It is audible if it is there. If you are answering on the first ring you will not see caller ID you have to wait till after the second ring then you should see it, If BSNL is sending the same as American systems. Good luck Z

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US phones use Bellcore FSK caller id. India uses DTMF caller id. Buy a DTMF- FSK converter at a telecom shop.

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Caller ID is not working in India.

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.
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

Now, Multi-Line caller ID converter is available.

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u need to purchase seperate caller ID for it.

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not only Panasonic, most other brand phones imported from other countries wont work in in India ( caller ID). Panasonic phones of Panasonic India, will work.I think panasonic has to explain this. if there are networks which does not support this equipment, atleast they should mention this is their booklets, to avoid users roam around telecom offices. To my understanding, all the land phones of BSNL through out India are caller ID enabled by default and is free!.

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1 Answer

Caller id

Caller ID in the USA uses the FSK standard. For the most part, caller ID in India uses DTMF (although I have heard of some FSK usage).

I am currently living in New Delhi and have an Airtel home phone line. My switch uses DTMF. I went to the Palika electronics bazaar (I aways use shop number 266 near gate 5, they seem to be a little kinder to foreigners as far as the "final price") and purchased an DTMF to FSK convertor. My US phones now show caller ID information, although using US number seperations ### - ### - ####. I paid R500 but you could probably get it for around R400 if you are willing to put in the time bargaining. It looks like they are also available on Indian Ebay.

Mine says UST001B. It looks like these are low volume items because they stuck the components into a box marked "DSL Splitter" It works to convert the caller ID as advertised.

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