Where we quote callthrough rates, we believe (based on the web pages of the companies we list) that calls are charged at the indicated price from a BT residential line.
BT apply a call set-up fee of 12.5 pence for each call made.
Other network operators' charges may vary.
You can check rates from BT landlines using BT's document
Prices for calls to Specialised Numbers from BT Residential Fixed Lines
You must have the bill-payer's permission before using any of the services or callthrough access numbers listed on our pages.