SIP Trunking

Harness the power of your data network
for your voice communications

Call us to discuss your solution on 08009530180

Our sales team are available Mon - Fri, 9am - 5pm

Excluding bank holidays


Why Choose Virgin Media
Business for SIP Trunking?


SIP Trunking (Session Initiation Protocol) can enable calls to be made to, and from your existing phone system across a data connection.

It optimises your secure data connection - your Managed Internet Access or IP Virtual Private Network - so that you only need one connection for voice calls and data tasks.

SIP Trunking plugs into your existing phone system, replacing your traditional voice service.


How can it help my business?

  • Make your connectivity work harder
  • Use your existing handsets and equipment
  • Future-proof your business
  • Increase efficiency, cut costs

Encourage collaboration, support new ways of working and boost employee satisfaction for a more productive workforce.


Call our experts today on 08009530180

Our sales team are available Mon - Fri, 9am - 5pm

Excluding bank holidays


Key features

Future-proof your business with a digital platform


BT are sheduled to switch off their Public Switched Telephony Network in 2025. Migrate your landlines to an internet based communications system now, and free your business from the deadline.


Manage call spike with simple scalability


SIP Trunking uses your bandwidth and canhave the capacity to scale up and down whenever you need to. To put it in context, SIP Trunking can handle thousands of calls, while an ISDN 30 circuit can only cope with 30 at a time.


Unify (and simplify) your network


Keep control of your on-premises telephony system. Consolidate you voice and data traffic over one connection, and cut the clutter. Unify all your traffic with a single supplier and one reliable SLA. 


Want call handling functionality?


DDI (Direct Dialling Inwards), CLI (Call Line Identity), CLIP (Caller Line Identity Presentation), CLIR (Caller Line Identity Restriction) and Presentation Numbers.


Keep your number


If you move premises there's no need to change your number. Reroute your calls to wherever they need to go. Business continuity is built in as standard.


Further information to download


Technical Information

SIP Trunking takes your existing data connection and allows you to layer voice over the top. Your voice traffic is prioritised so that you shouldn’t experience a dip in phone quality if someone is trying to download a huge file.

SIP (Session Initiation Protocol) is open standard, a common language meaning our SIP Trunking service works with the vast majority of phone systems on the market. SIP Trunking plugs into your phone system to enable calls into and out of your premises. It’s just like normal phone lines, except you don’t need dedicated voice circuits to do the job for you.

Customer Premises Equipment (CPE)

Our SIP Trunking service supports a growing range of Customer Premises Equipment.



SIP Trunking is delivered over our IPVPN or MIA services.



SIP Trunking supports both the G.711 and G.729 codecs to ensure you get the same great voice quality as you’d get with traditional voice services.


Inbound call routing

High level of configurable options for inbound call routing to ensure you never miss a call. Options such as priority routing and round robin call distribution can easily be tailored to support your business needs.



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Excluding bank holidays



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