Computer Science - Networking - Discussion
Discussion Forum : Networking - Section 7 (Q.No. 50)
50.
An example of a medium-speed, switched communications service is
Discussion:
1 comments Page 1 of 1.
Sid said:
10 years ago
Direct Distance Dialing (DDD) or direct dial is a telecommunications term for a network-provided service feature in which a call originator may, without operator assistance, call any other user outside the local calling area.
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