Do you agree with me that virtual communication is this era's heat of the town? Because from resolving queries online to digital healthcare to purchasing products online via demos, communication happens at every nook and corner of the world.
How is it possible? But before that what is VoIP? We will see all these in the section below.
How does this VoIP work?
Trust me mate, it is simple and requires minimal knowledge to understand its working. First let me put this straight. The conversation that we make via a call is analog signal which gets converted to digital format and then transferred over the internet.
Again, at the recipient's end, it gets converted to analog signals and then heard to the receiver. This is the overall working, and if we see in steps, the following happens:
1. Registration - The VoIP phone which you use to make call has to be identified by the VoIP server and for that SIP registration is mandatory, where your device's IP address is acquired
2. Building connection - Once you have dailed a number, your VoIP phone must send a SIP invite request to the server that includes a sender's and receiver's information. Then, the VoIP server locates the receiver and establishes connection
3. Transmitting messages - Upon successful connection establishment, voice signal is converted to digital packets and transmitted using RTP and UDP. Again, at the receiver's end, these digital signals are converted to analog format using a DAC
4. Ending call - After the call is established and messages are exchanged, a SIP Bye message is sent to the VoIP server asking to terminate the session and disconnect devices.
The world today that we live in, has become so advanced that any technological feature is made possible, and one such is white label VoIP calling app that helps businesses to deliver calling apps that promotes connectivity.
For more information check this blog: https://www.contus.com/blog/what-is-voip-a-complete-guide/
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