Caller ID not working for land phones

The Caller IDs work on two technologies DTMF and FSK. FSK(frequency shif keying) technology is used in United States and some other Dual Tone Multi Frequency (DTMF) is employed in India and some other countries.

Usually Indians try to get cordless phones or caller IDs from abroad, mainly from US where the caller ID works on FSK. Those phones when installed in India won't show the caller information because in India the caller information is send over DTMF. But don't worry there is a work around for this problem. You can buy a Caller ID converter, which is basically a DTMF to FSK converter (which cost around Rs 300-400/-) and connect your phone / Caller ID through this device.

If you are using ADSL broad band net connection through the same phone line then connect the converter only after the ADSL splitter.

I may suggest to go for CallerIDs or phones that support both FSK and DTMF in that case it will work in all places.

Another issue that you might face will be the power adopter. Phones from US may have the adopter for 100-120V, but in India we require 220-240V adopter. Usually we will try to get another adopter for that device from some shops and they may charge us more. I may suggest to go for a voltage converter (basically a stepdown transformer) for 20VA (depending on your phones load, Just multiply the input voltage and current marked on the adopter for example 100-120V 100mA in that case 120 * 0.1 = 12VA) so go for 20-30VA converter). Do not buy replacement adopters from the local market, if the output is not regulated properly your device may fail or the batteries may go bad. I will suggest to go for a voltage converter so that you can use the original power adopter and the expense for the converter will be less.

I got a 25VA voltage converter for 100 bugs and a Caller ID converter for 400 bugs from SP road, Bangalore, India

Airtel issues and concerns and solutions

If you are not satisfied with the support of Airtel Customer care then walk-in to the nearest Airtel Relationship Center (ARC), if you are still not satisfied then speak to the Nodal Officer and if still your problem is not solved then speak to the Applet officer.
Please do not send mails to these officers they are too slow to respond. Call them up. The Applet / Nodal officer numbers for your area is available in Airtel web site.

I am happy with the support and service from the Applet and Nodal officers. My SIM got blocked as it was not used for long time. I have contacted the customer care and walked into the nearest ARC. My address proof and request to reactivate the SIM were taken at ARC and I have waited for 2 weeks, there was no outcome and my SIM got deleted and my mobile number was send for recycling. I came to know about the Nodal officer and got the number of Kerala Nodal Officer. I called them up and raised my concern. They told me to submit my address proof again, I have done the same and waited for a week but no outcome. I agree that that Nodal officer have done their level best. Finally I called up Applet officer, by that time activating my old SIM became difficult and I was asked to get a duplicate SIM. I again walked into the next ARC and they told that SIM is not available. I really appreciate the efforts of Applet fooicers Rahul and Johnson. Rahul contacted the ARC and told them to issue a SIM urgently from the reserved stock. Finally I got the SIM and after lot of efforts from the Applet officers and from my side I got my mobile number back.

I am really happy that the number that I got the number back that was deleted and given for recycling...

So buddies please don't wait for long believing the Customer Care and ARCs just call the APPLET OFFICER / NODAL OFFICER