Wednesday 5 November 2008 photo 5/7
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A telephone call may carry ordinary voice transmission using a telephone, data transmission when the calling party and called party are using modems, or facsimile transmission when they are using fax machines. The call may use land line, cell phone, satellite phone or any combination thereof. Where a telephone call has more than one called party it is referred to as a conference call. When two or more users of the network are sharing the same physical line, it is called a party line or Rural phone line.
A dial tone signifying that the system is ready to accept a telephone number and connect the call
Annons