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SIP Trunks

Calls using VoIP technology from £4.99/month

Cost-effective and future-proof replacement to ISDN
Reduce the monthly cost of inbound and outbound calls
HD call quality using your existing phone system
SIP channels with inclusive minute bundles available
For an instant quote, contact our team on 0800 043 4388
SIP can save you £1000's on call charges
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Complete your details below and a member of our team will respond to you shortly (Mon-Fri)

What are SIP Trunks?

SIP Trunks are a form of media transfer that connects your premises directly to the Public Telephone Network. SIP (Session Initiation Protocol) is used to deliver voice, video and communications data over a SIP-based private branch exchange, commonly known as IP-PBX and is the backbone of unified communication solutions. Trunks are compatible with all the leading PBX hardware and this simple transfer to SIP offers cost-saving benefits with future-proofing and flexibility as added benefits.

Why switch to SIP Trunks?

SIP Trunks are the fastest growing telephony line for businesses looking to save money and add a layer of resilience to their existing telephone system. With SIP there is no need to upgrade systems as the ISDN channels are simply switched to SIP for internet-based calls, video and unified communications. SIP trunks are the perfect transition to IP-based calls using an existing system, without jumping to full VoIP (Voice over Internet Protocol).

How to add SIP lines to my phone system?

SIP trunks are added to the configuration of an existing phone system with IP access enabled. The typical digital system running over ISDN2 or ISDN30 is switched to SIP using the ID for example sip:0-800-043-0800@tw.example.com. This will pass traffic over the internet and any traditional copper ISDN channel can be removed to save money on rentals and call charges.

SIP Trunks
"Transform your business phone system and modernise your PBX infrastructure by transitioning from ISDN to SIP. Our offerings include flexible channel options and comprehensive call packages for both UK and international calls. Take the first step towards cost savings and future-proofing your communications by contacting our SIP specialists on 0800 043 4388."
Speak with our UK based team to learn how SIP Trunks can help your business
  • SIP Trunk FLEXI
    £4.99 Per
    Month
    £25.00 Connection
    SIP Trunk Only Package Includes
    Unlimited Inbound Calls
    4 ppm minimum UK Landline Minutes
    7 ppm minimum UK Mobile Minutes
    N/A Call setup
    Number Memorability
    No Inclusive Minutes
    Request a Callback
     
  • SIP Trunk PLUS
    £6.49 Per
    Month
    £25.00 Connection
    SIP Trunk + Calls Package Includes
    Unlimited Inbound Calls
    1000 Inclusive Minutes UK Landline Minutes
    1000 Inclusive Minutes UK Mobile Minutes
    3 ppm Landline & Mobile Out of bundle rates
    Number Memorability
    1000 Inclusive Landline & Mobile Minutes
    Request a Callback
     
  • SIP Trunk MAX
    £7.99 Per
    Month
    £25.00 Connection
    SIP Trunk + Calls Package Includes
    Unlimited Inbound Calls
    2000 Inclusive Minutes UK Landline Minutes
    2000 Inclusive Minutes UK Mobile Minutes
    3 ppm Landline & Mobile Out of bundle rates
    Number Memorability
    2000 Inclusive Landline & Mobile Minutes
    Request a Callback
     

    Why Consider SIP for your Business?

    We have helped our customers to save an average £4,770 per annum by upgrading their PBX with SIP Trunks and increasing control over their Telecoms.
    By 2025, all UK business telephony will be hosted. SIP Trunks are the perfect solution to extend the lifespan of your existing PBX system and move to VoIP.
    Our specialist team are on hand at the point of installation and assist with the ongoing configuration. Our aim is to make SIP easy and hassle free.
    Telecoms World

    The benefits of switching to SIP Trunks

    SIP Trunks provide all the benefits of cutting-edge VoIP technology
    Integrates With Your PBX

    SIP Trunks provide all the benefits of cutting-edge VoIP technology without the need to replace the system you’ve already invested in.

    With SIP Trunks it is incredibly easy to move or divert fixed lines anywhere with your PBX
    Network Coverage

    With SIP Trunks, it is straightforward to move or divert fixed lines anywhere, regardless of location, without any expensive call forwarding costs.

    Save on average £4,770 per year with SIP Trunking
    Save 70% On Line Rental

    Save on average £4,770 per year and have increased control over your Telecoms. Plus, our system is easy to use, flexible and upgradeable at any time.

    Expand your business with SIP without boundaries
    Ultimately Scaleable

    Expand your business without boundaries. Add and remove users in a few clicks saving time and money - all in the comfort of your existing PBX system.

    SIP Trunking offers instant savings and is helping to fuel a full move to VoIP
    The Best Deals In The UK

    Call charges over SIP are often 30% cheaper when compared with traditional ISDN lines. The instant saving is helping to fuel a full move to VoIP.

    Remove the cost of calls on your PBX between departments with FREE on-net calls using a SIP Trunks
    Free Calls Between Offices

    Remove the cost of calls between departments with FREE on-net calls using a SIP connection. Your staff internal calls can often take 20% to 30% off your bill.

    Some of the PBX vendors we work with

    Mitel is a PBX vendor we work with. Business SIP Trunking.
    Cisco is a PBX vendor we work with. Business SIP Trunking.
    Avaya is a PBX vendor we work with. Business SIP Trunking.
    Avaya is a PBX vendor we work with. Business SIP Trunking.
    Samsung is a PBX vendor we work with. Business SIP Trunking.
    Samsung is a PBX vendor we work with. Business SIP Trunking.
    Snom Technology PBX telephone systems

    Proud to work with leading UK businesses

    Telecoms World, proud to work with leading UK businesses - DS Smith
    Telecoms World, proud to work with leading UK businesses - Hilton
    Telecoms World, proud to work with leading UK businesses - Costain
    Telecoms World, proud to work with leading UK businesses - Direct Insurance Group PLC
    Telecoms World, proud to work with leading UK businesses - Dementia UK
    Telecoms World, proud to work with leading UK businesses - Hays Travel
    Telecoms World, proud to work with leading UK businesses - NHS
    Telecoms World, proud to work with leading UK businesses - Ladbrokes
    Telecoms World, proud to work with leading UK businesses - Castore
    Telecoms World, proud to work with leading UK businesses - Kings Ferry
    Telecoms World, proud to work with leading UK businesses - Halfords
    Telecoms World, proud to work with leading UK businesses - Lego
    Telecoms World, proud to work with leading UK businesses - Megden
    Telecoms World, proud to work with leading UK businesses - Maldon Salt
    19,650
    Accounts
    Happy Customers
    41,250
    Live Services
    To UK Businesses
    5
    Star Rating
    Independent Reviews
    22+
    Years Trading
    2002 - 2024

    Telecoms World

    Unit 2/3 Kingfisher House
    New Mill Road
    Orpington
    Kent BR5 3QG

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