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What is an IP phone?

An IP phone is a tool that transmits voice using VoIP technology. It can take two different forms.

  • Hardware: a physical telephone that looks just like a traditional telephone and is connected to the IP network.

  • Software: also called a “softphone”, this makes it possible to use IP telephony through a cloud service. There is no physical phone—all actions are performed in the computer interface and with a microphone-equipped headset.

What’s the difference between traditional telephony and IP telephony?

Traditional telephony uses the public switched telephone network. Voice is transmitted as analog electrical signals via copper wires.

IP telephony uses VoIP technology and doesn't have the constraints of the physical telephone network. Voice is transmitted as digital data over IP networks.

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