Switching to SIP Trunking: A good idea

More businesses are moving away from inflexible legacy telephone networks and are embracing SIP trunking, which offers reduced costs, improved productivity, centralization, disaster recovery and a first step to a full unified communications platform.

Towards the end of 2012, one-third of 300 enterprises surveyed by Webtorials had deployed SIP with an average cost saving of 33%. SIP trunks were also reported to reclaim 23% of the productivity lost with previous inefficient communications solutions.


SIP is experiencing this surge in popularity as more businesses are migrating to next generation IP environments with wired and wireless networks. Furthermore, as many companies are looking to cut costs and increase efficiencies with unified communications, SIP offers them the perfect stepping stone to a fully-fledged UC platform. This is because SIP trunks provide us with the virtual signaling tools needed for this environment.

As we increasingly move towards IP networks, the rise in SIP lines will accelerate.

What is SIP Trunking?

SIP stands for Session Initiation Protocol and is the network communications protocol used to control the flow of voice and fax calls using VoIP, and is effectively the method of transmitting the call.

VoIP stands for “Voice over IP”. IP or “Internet Protocol” is the method by which the digitized voice signal is transmitted over computer networks rather than the more traditional PSTN (Public Switch Telephone Network).

sip-trunk-how-it-works- (2)

To communicate via your IP PBX to outside the enterprise you need a SIP trunk to connect to the traditional PSTN. SIP and VoIP can be considered as your virtual ISDN lines, but with a higher level of reliability and significantly more flexible.

Therefore, SIP services effectively allows organizations to replace traditional, fixed PSTN lines with PSTN connectivity via a SIP trunking solution over the internet. It reduces costs by eliminating the need for local PSTN gateways and costly ISDN infrastructure.

To successfully implement an IP network infrastructure into yourorganization you need the following components; a PBX with a SIP enabled trunk side, an enterprise device that understands SIP, and a fast and reliable internet connection.

hand pushing social network structure

Why do I need SIP Trunking?

SIP trunking services are simpler and easier to configure and are far less expensive to design, operate, manage and upgrade. Therefore, any investment with a SIP provider is quick to give an ROI.

SIP lines deliver cheaper national and international calls, high quality voice and a single, unified infrastructure. This is why SIP is hot stuff in the world of unified communications.

Deploying SIP is the next logical step in the advancement of business communications, as you are able to benefit from a single, IP based infrastructure rather than inflexible, soon to be redundant, traditional telephone networks.

By combining voice, fax and data into one network you are simplifying your communications and management, running costs are reduced and it has also been proven that businesses can save up to 60% on their telephone bills.

These benefits are great but they are pointless if correct installation is not done. You need to make sure that you or your SIP trunking system service provider have made correct calculations as to how much bandwidth will be available to allow the required number of constant calls to be made and or received. Another part of the installation process you need to make sure of is that whether all the correct hardware and software has been supplied, installed and configured by your SIP trunking service provider.

SIP trunking is great leap forward that is flooding the market due to the fact that brings so many benefits with it. So many SIP trunking providers are working hand-in-hand with business phone system manufactures to help make the overall experience of users and business owner better. This is an investment your business needs!

Leave a Reply

Your email address will not be published. Required fields are marked *