If you're phoning from outside London, dial 01 in front of the number.
从伦敦以外的地方打来电话, 要先拨01再拨电话号码.
Dial 100 for the operator.
拨100找接线员。
A term applied to a data transmission carried on the public switched telephone network and initiated by dialing the telephone number of the receiving station.
应用于普通开关电话网数据传输上的术语, 指拨通某接收站的电话号码就能访问该系统的性质和动作。