Which of the following is an advantage of replacing an existing PBX tie line with a VoIP/Data network?
a. Simplifies the transport.
b. Data bandwidth is reserved.
c. Networks can efficiently use the available bandwidth.
d. Always improves the overall network performance.
b. Data bandwidth is reserved.
Explanation: Voice bandwidth is reserved for a required number of phone calls even if the calls are not made. Combining the two networks simplifies the transport, but it doesn't necessarily improve the overall network performance, but the networks can efficiently use the available bandwidth.
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