An IT technician is setting up a VoIP phone system in a small office. The office has a Cat5e cabling infrastructure and a non-PoE-capable switch. What is the most cost-effective solution to power the VoIP phones while making use of the existing infrastructure?
Replace the current switch with a PoE-capable switch
PoE injectors
Replace the phones with battery-operated wireless phones
The correct answer is PoE injectors. Installing PoE injectors is the most cost-effective solution because they add the capability to send power over an existing non-PoE switch through the network cable to power devices like VoIP phones. A PoE-capable switch is incorrect because although it can natively power devices over Ethernet, it would require replacing the current switch, potentially incurring higher costs. Installing New Cat6 cabling is also wrong because Cat6 cabling alone does not provide Power over Ethernet if the switching infrastructure doesn’t support PoE. Lastly, Replacing the phones with battery-operated ones is incorrect because it requires purchasing new hardware and does not make use of the VoIP capabilities or existing infrastructure.
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What are PoE injectors, and how do they work?
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Why can't we use a non-PoE-capable switch to power VoIP phones?
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