dialled

Dialled is the past tense and past participle of the verb dial, primarily used in British English. American English typically uses dialed. The senses of dial include entering a telephone number to place a call, operating a dial on a device to select a setting or input a value, and turning a control to adjust or calibrate. The verb is derived from the noun dial, which refers to a circular indicator or control on a device such as a clock, gauge, or rotary dial.

Usage notes and contexts:

In telephony, dialled describes the action of entering digits to initiate a call, whether on a keypad or a rotary dial. In manuals or technical contexts, dialled can also describe setting a device by turning or selecting with a dial. The term is common in descriptions of older equipment that used physical dials, as well as modern devices that retain a dial control for specific functions.

Regional spelling and style:

The form dialled is standard in British, Irish, and many Commonwealth varieties of English, while dialed is standard in American English. Both spellings are understood in international contexts, but authors often maintain consistency with the regional variant throughout a document.

See also:

Rotary dial, dial pad, dial tone, dial indicator.