SIP Trunking

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SIP Trunking

SIP trunks allow delivery of telephone services and unified communications to customers with a SIP-enabled PBX, e.g. 3CX Phone System.

SIP trunks are the recommended replacement for ISDN (digital) lines, which are being switched off in 2025.

Features

Quick and Easy Setup

During the week, orders normally take 1-2 hours to complete.

Please note this excludes any Number Porting requirements.

Reduce Costs

Businesses can reduce their telephone costs by leveraging SIP Trunks, WebRTC, free calling to remote extensions and offices, and reducing the number of fixed telephone lines.

No Long Contracts

Nobody likes being tied into long contracts. You will have the freedom to cancel service at any time, without penalty.

Expert Advice

We provide telecoms and IT for businesses of all sizes. We offer friendly and knowledgeable advice on the latest products, and helpful support to our customers.

Our Faults Helpdesk is available 24/7, 365 days a year.

Pricing

Monthly Charges

Item Description
Price /month
SIP Trunk (per channel) The amount of Simultaneous calls a customer can make or receive is limited by the number of available channels. £4.50
Fraud Monitoring and Alerting Peace of mind that should you be the target of PBX fraud your account will warn you and automatically be suspended. FREE
Disaster Recovery (or ‘Failover’) In the event of an emergency or disaster, automatically re-route calls to ensure business continuity. FREE

One-Off Charges

Item Description
Price
Single Number Port Porting Single Line Number to SIP Trunking service. £10.00
Multi Number Port
(per ISDN DDI Number range)
Porting ISDN DDI Number range to SIP Trunking service. £100.00
Standard Telephone Number Supply New telephone number, e.g. 01326x, for use as DDI number etc. £1.00

All prices exclude VAT unless stated. Terms apply.

Call Charges

Item Description
Price /minute
UK Landline Includes 01/02/03 numbers. Excludes calls to mobiles, the Internet or non-geographic (e.g. 0845 and 0844) numbers. 1p
UK Mobile Includes UK mobile networks (Vodafone / O2 / EE / Three). 7p
International: Most Popular Destinations Australia, Canada, China, Cyprus, France, Germany, Greece, Ireland, Italy, Netherlands, Spain, USA (including USA mobiles). 2.7p

All prices are Per Minute (/min) and exclude VAT unless stated. Per second billing. Terms apply. Calls to 084, 087, 09 and 118 numbers: Fair Usage Policy applies. International: Price quoted refers to landline calls and excludes mobiles unless stated.

Optional Monthly Extras

Item Description
Price /month
Bolt-On: Anytime 60 Includes 60 minutes of Free UK calls*. Inclusive minutes are SHARED across any line(s) you have registered with our service. £1.00
Bolt-On: Anytime 500 Includes 500 minutes of Free UK calls*. Inclusive minutes are SHARED across any line(s) you have registered with our service. £6.00
Bolt-On: Anytime 1000 Includes 1,000 minutes of Free UK calls*. Inclusive minutes are SHARED across any line(s) you have registered with our service. £10.00
Bolt-On: Anytime 5000 Includes 5,000 minutes of Free UK calls*. Inclusive minutes are SHARED across any line(s) you have registered with our service. £30.00

All prices are Per Month (/mo) and exclude VAT unless stated. Terms apply. *Includes 01/02/03 numbers / UK mobile networks (Vodafone / O2 / EE / Three). Maximum of one Bolt-On per account. Unused minutes cannot be rolled over.

FAQs

Do I have to use your Broadband?

No. Although, it may make diagnosing potential faults easier if we supply both services.

How can I protect myself from ‘PBX fraud’?

We can’t eradicate the risk altogether but we have provided peace of mind that should you be the target of PBX fraud your account will warn you and automatically be suspended, i.e.

Fraud Alerting:
We can set a daily limit for a company or end-user so that when the set limit for the call spend is exceeded an email notification is automatically generated and sent to the email address(es) listed on the portal.

Fraud Suspension:
In addition to fraud alerting we also provide an additional level of security to protect our customers.

On top of the level set by fraud alerting, should the fraud suspension limit be breached then the account will be suspended.

SIP Trunks only. Daily / Suspension limits based on ‘Voiceflex Retail Tariff’ pricing. Contact us for more information.

How long is my contract with you?

Subject to our Terms of Business we will supply service for a minimum of 12 months from the date the Service is first delivered to you.

However, customers have the freedom to cancel service (or transfer to another provider) at any time, without penalty.

How long does it take to set up?

During the week, orders normally take 1-2 hours to complete, i.e. supply New telephone numbers and full configuration details.

Please note this excludes any Number Porting requirements.

What do I need to use SIP trunks?

You will require a SIP-enabled PBX. There are 3 main types:-

1) Hybrid Phone System, e.g. Avaya IP Office
2) IP PBX (Hardware Based), e.g. Grandstream UCM6108
3) IP PBX (Software Based), e.g. 3CX Phone System

You will also require a reliable Internet connection (ADSL2+ or FTTC where available), and it may be necessary to upgrade your router.

Can I keep my old Phone number(s)?

Number Portability generally allows customers to keep their Phone number(s) when they change Communications Provider. However, it may not be possible to port your number(s).

The cost of porting a number and the timescales involved depend on the type of number (e.g. Single Line, ISDN DDI Number, etc), and whether the number has previously been ported (this is known as Subsequent Porting).

What happens if my Internet stops working?

Disaster Recovery (or ‘Failover’) options are available.

In the event your line and / or broadband develop a fault we can re-route your inbound calls to another number of your choice, e.g. another landline or mobile phone.

Please note whilst VoIP services allow calls to the emergency services numbers 999 and 112, the ability to make calls to the emergency services using VoIP CANNOT be guaranteed.

If there is a power cut, or the Internet connection either fails or suffers degradation in call quality, in case of emergency customers will need to dial 999 or 112 from a traditional landline or mobile.

How reliable is your service?

We only use UK-based carriers employing the very latest in network technology.

Supported by a resilient network, you are safe in the knowledge that you’ll benefit from 99.9% uptime.

Find out more

Call us today free on 0800 038 2233

We’re here Monday to Friday 8am to 5.30pm, excluding Bank Holidays.

Alternatively, complete the form below and we’ll get back to you within 2 business hours.

Get in touch

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