Dual access
From Wikipedia, the free encyclopedia.

In telecommunication, the term dual access has the following meanings:

1. The connection of a user to two switching centers by separate access lines using a single message routing indicator or telephone number.

2. In satellite communications, the transmission of two carriers simultaneously through a single communication satellite repeater.

Source: from Federal Standard 1037C and from MIL-STD-188

The original article can be found at: http://en.wikipedia.org/wiki/Dual_access.
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