A SIP Trunk ( Session Internet Protocol ) is a trunk that acts as an intermediary between a company and the national or international telephone service provider. Thanks to this telephone system , calls can be made and received via the Internet without having to go through analogue or ISDN lines.
This intermediation or connection made by the trunk is made possible by:
A stable internet connection and good bandwidth service ,
a VPN,
an IP service provider,
a virtual or physical switchboard (IP switchboard),
SIP trunk bonding lines,
SIP clients or IP technology devices such as phones, adapters, software, etc.
What used to be a business decision is now brazil whatsapp shopping data becoming an obligation: moving from the Public Switched Telephone Network (PSTN) to an advanced network system such as SIP Trunking .
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How does a SIP trunk work?
Companies that implement the SIP trunk system base their calls on VoIP technology. Unlike traditional telephony , here the transmission of the voice of outgoing and incoming calls takes place over the Internet.
IP technology is responsible for converting voice into data packets , so that they can be transmitted through the link that the SIP trunk makes with the public telephone service.
In other words, the SIP trunk acts as a primary telephone cable to connect each of the office extensions to the PBX and for them to go out to the outside. Internal calls, on the other hand, remain within the IP PBX system.
When the customer calls one of the main numbers under which the company or brand appears, the call is connected to the telephone exchange via the Internet . From this moment, different actions are possible: