What are they and what are they used for

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SIP telephony is a method of voice communication via the Internet without using a phone number. This type of communication has a SIP address - a unique identifier similar to a familiar combination of numbers, but with its own specifics. So that ordinary users and smartphone manufacturers do not have to adapt to a new type of communication, a function has appeared that allows you to convert SIP numbers into regular ones.






In this article, we will look at what a SIP number is and why it is needed.


A little bit about SIP
The abbreviation stands for Session Initiation Protocol. The function is based on the SIP protocol for transmitting information between devices. Communication is carried out via the Internet. The protocol can be extended with SIP Messaging (SIP messages), SIP Instant Messaging, Presence Leveraging Extensions (SIMPLE) and codecs for transmitting video and images.




With SIP telephony, you can quickly and inexpensively set up Peru Phone Number Database and maintain corporate communications. Savings are  40% for domestic calls and 90% for international calls. SIP telephony is usually used by companies that handle a lot of phone calls, but this service will be useful for any business.


How does the call go?
Let's look at the mechanism for processing calls to a SIP phone using the example of Igor, who wants to call and buy tickets. Stages:


Igor calls from a phone to a regular number.


The provider receives the data and sets up its transmission from its service to the terminals of the user company. MTS encodes the human voice into a digital signal without loss of quality.


The signal reaches the receiving party's terminal. The role of the terminal can be performed by special phones, computers, mobile devices, etc.


The signal from the company is converted into analog and transmitted to Igor's.