This has always worked but since moving house has now stopped,i have contacted my service provided who states it is activated their side and should now have no problems but still not working :(
Is this a standard POTS line(Plain Old Telphone Service)? If so,your service provider needs to test it at the NID to verify it is working.Certain line conditions or troubles can cause the Caller ID data to be lost.I have seen defective phone company equipment cause it not to work,or a large bridge tap on the copper cable pair to knock it out.
SOURCE: CALLER ID NOT WORKING
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!.
SOURCE: Caller ID not working
Hi,
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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