Explain a telephone switching board can handle

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Reference no: EM13139425

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A telephone switching board can handle 120 phones. Assuming the following, and determine the outgoing traffic intensity and the number of channels.

* On average 5 calls/hour per phone
* 60% of all calls made are external
* Average call duration time is 4 minutes
* GoS = 0.9%

Reference no: EM13139425

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