Difference between IP telephony and Voice over IP (VoIP)
Let's start by talking about VoIP ( Voice over Internet Protocol ).
Voice over Internet Protocol is a technology through which voice transmission (after being converted into data packets) is possible over the Internet network .
This term generally refers to protocols australia whatsapp shopping data that facilitate telephone calls through third-party applications , from private company networks (LANs) or from public networks (the Internet).
In this sense, IP telephony is one of the infrastructures that is made possible thanks to the VoIP protocol.
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How does IP telephony work?
In IP telephony, analog voice signals are encoded and sent over the Internet . This is why IP voice calls work differently than traditional calls. To do this, you need to have:
An IP protocol ,
some device that allows making this type of call (a virtual switchboard , softphone , etc.),
gateways .
Unlike conventional communication, in IP telephony the telephone signal is transmitted to the gateway and the data packets are decoded so that the receiver can hear the original signal in voice format.
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Difference between IP and analog telephony
Aspect Conventional telephony IP Telephony
Infrastructure - Wiring, terminals and physical lines .
Independent lines for each call.
No internet connection required .
Network structure to configure switchboards and their terminals.
Same line to make or receive multiple calls.
Its operation and quality depend on the bandwidth available .
Service - Call quality is generally stable.
Communications do not present delay or latency.
Call quality may depend on the selected VoIP operator and internet connection.
Call instability or latency may occur.