The following numbers, if used by firms, would comply with the call charges rule:
- (1)
geographic numbers or numbers which are always set at the same rate, which usually begin with the prefix 01, 02 or 03;
- (2)
calls which can be free of charge to call, for example 0800 and 0808 numbers; and
- (3)
standard mobile numbers, which usually begin with the prefix 07, provided that the firm ordinarily uses a mobile number to receive telephone calls.