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What is the rush line function

Add Date:2017-3-15 Hits:1566 Font Size:S M L Back
Grab line function means that the host can automatically cut off when the alarm dial and immediately call the police calls, to ensure the real-time transmission of alarm alarm call went out on the line.

Note: Implementing this feature requires local telephone lines in the absence of any other device connected to the case of direct access to the host, and then by the host telephone extension interface to access other devices.
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