Seems to be many problems and issues with callerid in the UK. Use the settings below and give it a try.
put signalling, channels, and other options down here
Load the drivers with opermode=UK.
modprobe wctdm opermode=UK
Once the driver is loaded then start Asterisk.
If you get CID most of the time but not all of the time look at this post here: forums.digium.com/viewtopic.php?t=8477
The patch seems to work good.
I might be wrong but I don’t think you can write a ‘UK Caller ID’ posting because you have numerous carriers such as BT, NTL, Telewest etc.
I understand, because NTL bought up many smaller companies years ago there isn’t even standard technology for NTL, it depends what switch technology the company they bought was using.
This is what I was told, it may be incorrect but it sounds reasonable to my untrained ear.
Changing title to include “BT” just to make sure.
For loads of info on Callier ID that is mainly UK-based try here: