VoIP Services

Replace your physical phone lines and upgrade to our cloud-based VoIP solutions.

What is VoIP?

VoIP (Voice over Internet Protocol) is a way to make and receive calls over the internet, future-proofing your telecoms, saving you money and increasing efficiency.

We offer VoIP Users which are ideal for sole traders to medium sized businesses and SIP Trunks for larger corporations looking to connect to their existing PBX.

Why use TTNC?

Being one of the first VoIP providers in the UK, we've helped thousands of businesses flourish. We have many customers who use our services every day and trust TTNC to keep their communication flowing.

With no contracts or hidden usage policies, our multi-award-winning VoIP service provides you with advanced cloud-based PBX functionality as standard.

VoIP User

VoIP User

A VoIP User is a fully hosted solution and requires little more than an Internet connection, a TTNC phone number and a VoIP Handset or our free TTNC Softphone App for Mobile

Each person looking to make or receive calls would require their own VoIP User. A TTNC Number can have multiple VoIP Users, making scalability simple.

  • Caller ID - Display your TTNC phone number as the caller ID on outbound calls.
  • Any device - Make calls from your VoIP User on any device with an internet connection.
  • Low-cost - Outbound call charges are up to 75% cheaper than other major providers.
  • Internal Extensions - Free internal calls and transfers between your VoIP Users.
  • Auto failover - Forward calls to your landline or mobile number if your VoIP device is offline.

  • Who is it for?

    Local tradespeople, small/home office workers, entrepreneurs, sole traders, start-ups and businesses with remote workers.


    Read more about VoIP Users

SIP Trunks

SIP Trunk

A SIP Trunk provides a connection between your PBX and our VoIP network. This gives you the ability to make and receive calls from our network using your own PBX.

We provide you with 2 inbound channels as standard, additional channels can be purchased to match your concurrent call volume.

  • Flexible Caller ID - Manage your CLI presentation for outbound calls.
  • Elastic outbound - No outbound channel limit.
  • Scalable - Instantly increase or decrease inbound channel capacity at any time.
  • Security - Static IP authentication and Access Control List (ACLs) management.
  • Disaster Recovery - Automatically failover to PSTN in the event of an outage.

  • Who is it for?

    Businesses using a premise based PBX or looking to replace an existing ISDN Line


    Read more about SIP Trunks


Why use TTNC?

  • Providing VoIP services for more than 15 years
  • 16,000 businesses already use our services
  • Range holder of over 7 million phone numbers
  • UK owned and operated with 24/7 support
  • Multi-Award-Winning VoIP service
  • ITSPA member and regulated by Ofcom
  • Holders of the ITSPA Quality Mark
  • Ofcom approved Code of Practice