SIP Trunking

Business Trunking for business users

Keep your phone system and replace traditional lines with a SIP trunk – the same voice quality, lower costs and voice channels that match your actual needs.

SIP Trunking

What is SIP Trunking?

SIP Trunking (Session Initiation Protocol trunking) is a service that connects your company’s phone system to a telecom operator over the Internet Protocol. It replaces traditional analogue or ISDN lines and enables voice and video calls over an IP network.

It is designed for business users who have their own SIP-compatible phone system (IP-PBX). You keep your phone system and change only the way it connects to the public telephone network – with lower costs and more flexible rental of voice channels.

What is a SIP trunk – business phone system, SIP trunk over an IP network, service provider and the public telephone network
Key benefits

Why SIP Trunking?

01 / Capacity Scalability You add or remove voice channels according to your actual needs, so growing your business is simple and needs no new equipment.
02 / Costs Lower costs Compared with traditional lines, communication costs are lower, especially for international calls.
03 / Numbers Local presence With virtual numbers your company has a local presence in different regions, which makes it easier for customers to reach you.
04 / Features Flexible features Call routing, voicemail, conference calls and other advanced business communication features.
05 / Network One connection Voice and data travel over your existing internet connection, so you make better use of the capacity you already pay for.
06 / Reliability Greater reliability If one connection fails, calls can be automatically redirected to another available line or number.
Instead of ISDN and E1 lines

Your existing phone system, a modern connection

The key advantage of SIP Trunking over the protocols that used to dominate (ISDN, E1/T1) is that it combines voice and data over the same access. Voice quality stays the same, while you make significant infrastructure savings and get a far more flexible model for renting voice channels.

Keep your phone system

Your existing IP-PBX remains the foundation of the system – no new equipment and no change in the way your employees work.

Everything over one connection

You send several types of data over one connection, which increases productivity and makes better use of network capacity.

No maintenance costs

You expand your telephone network as your business requires, without unnecessary line maintenance costs.

Read more about how a SIP trunk connects a phone system to the public network in the article What is SIP Trunking and how does it help you make significant savings?. Don’t have your own phone system? Take a look at our Cloud_PBX – a phone system in the cloud.