Voice over Internet Protocol (VoIP) Question:
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What Are Some disadvantages of VoIP?


If you're considering replacing your traditional telephone service with VoIP, there are some possible differences:

► Some VoIP services don't work during power outages and the service provider may not offer backup power.
► Not all VoIP services connect directly to emergency services through 9-1-1.
► VoIP providers may or may not offer directory assistance/white page listings.

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What do internet telephony,packet telephony, IP telephony and converged network means?How does VoIP (voice over Internet protocol) work? What makes it different from traditional phone service?