How to switch from PSTN to SIP trunk?

How to switch from PSTN to SIP trunk?

Having become obsolete, the Switched Telephone Network will see its analog and digital lines gradually disappear from the end of 2018. The SIP Trunk is the technology adapted to new uses which is gradually taking over from the PSTN.

For businesses, migrating to a SIP Trunk solution makes it possible to optimize communications and make many simultaneous calls on the Internet network.

The SIP trunk is the keystone of your migration to VoIP. Here are our tips for a successful transition from PSTN to SIP Trunk.

What is the SIP Trunk?

The SIP trunk is a connectivity service billed to your company by an internet operator who relies on ADSL, XDSL, or even on fiber.

It is made up of a set of channels allowing several communications to be routed simultaneously over the Internet using the SIP protocol (Internet communication protocol which allows IP devices to communicate with each other).

The SIP trunk is coupled to an IP standard (IPBX) to pass your incoming and outgoing communications over the Internet.

It allows you to connect your IPBX directly to your VoIP operator's network to transport voice communications over IP.

SIP trunk connections will take over from the PSTN, offering more flexibility to businesses.

Depending on your needs, the SIP Trunk offers on-demand channels (from 2 to more than 60 channels depending on the type of installation), thus facilitating the management and development of your telephone network.

The advantages of the SIP trunk for companies

Technology adapted to business needs

Promoting unified communications solutions and hosted telephony, the SIP trunk is suitable for modern uses such as videoconferencing or collaborative and / or remote work.

In the age of digitization, the SIP Trunk constitutes a basic foundation for the development of communication applications adapted to the new expectations of entrepreneurs.

The arrival of the SIP trunk is also accompanied by a simplification of the management of calls and of your ToIP network. Indeed, all voice communications are centralized and managed from a single contract.

Flexible, SIP technology supports the evolution of your business. You move ? The SIP trunk allows you to keep all of your numbers.

Is your business growing? You can add a site or easily increase the number of simultaneous communications available.

An economical solution

Due to the centralization of voice flows, using a VoIP infrastructure allows you to save on your communications.

Thanks to the WAN (Wide Area Network), you can make free calls between the remote sites of your company.

You can also achieve economies of scale on outgoing calls thanks to the advantageous rates offered by SIP operators.

Quality communications

The SIP trunk, associated with an adapted speed, allows to benefit from a superior call quality. Native or third-party communication applications like Skype for Business facilitate interactions while providing a high level of service.

How to switch from PSTN to SIP trunk?

With the scheduled end of the PSTN, companies will have to gradually migrate to ToIP solutions before the start of the technical shutdown scheduled for 2022. The PABX (analog PBX) will therefore become unusable.

To switch to the SIP trunk, you must have an internet connection and an IP-PBX upstream which will be connected to your operator's voice network via IP and SIP.

Your conventional lines (T2, Trunk) are then replaced by SIP Trunks without changing your telephone installation.

The SIP trunk connects your operator's voice network to the Internet network.

Although it is possible to change your telephones and switchboards by investing in IP equipment, you do not have to separate yourself from your equipment. These can, through a gateway, be connected to your IP telephony network.

Before installing Trunk SIP, however, it is necessary to assess the expectations of each service in terms of communication in order to identify specific needs (videoconferencing, collaborative tools, etc.).

For a successful transition to SIP Trunk, choose an operator also ensuring the integration part of your telephone platform.

This will become your single point of contact in charge of setting up, validating, quality control and possible adjustments to the number of channels.

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