It is surprising that people are still unable to adequately articulate how much it costs to call them.
Calls to numbers starting 01, 02 and 03 are ‘inclusive’ in allowances from landlines and mobiles else charged at ‘geographic rate’.
Calls to numbers starting 080 are free-to-caller from landlines and mobiles.
Calls to numbers starting 084, 087, 09 and 118 have two parts to the call cost. There’s an Access Charge set by and paid to the benefit of the caller’s landline or mobile provider and a Service Charge set by and paid to the benefit of the called party and their telecoms provider.
Both Ofcom and ASA specify the required wording for 084, 087, 09 and 118 numbers:
http://ask.ofcom.org.uk/help/telephone/businesscallinghttps://www.cap.org.uk/Advice-Training-on-the-rules/Advice-Online-Database/Charg...The Service Charge element can be looked up at:
http://checkit.uboss.com/