Knowledge Base


The unit is referred to as the Network Termination Equipment (NTE) or RAD box.

It is used to ‘bond’ the multiple lines that are used on an EFM connection into one circuit. There are RJ45 Network ports on the rear that allow you to plug your own equipment such as routers in.

Front View

The front of the LA-210 includes LED lights that can indicate the state of the unit and the connection.


Rear view

The LA-210 has 4 RJ-45 network ports that the you can plug your own router into.


ls120led LED STATUS

Calls and Lines Connectivity

EFM Leased Lines

Highly reliable 20Mb symmetrical Internet from £350.00 per month

EFM Leased Lines (Ethernet in the First Mile) provides high speed, reliable internet connectivity for businesses who have outgrown traditional broadband, but where fibre base Ethernet services are still too expensive.EFM uses multiple copper pairs to deliver the service. These are bonded together to provide a combined service. By combining pairs you will receive a much more reliable service because if there is a fault with a single wire then the service will just slow down, rather than taking your business off line.In addition, unlike ADSL where the customer is typically responsible for reporting a fault, with EFM the service is proactively managed by the Gradwell operations centre and where a fault occurs, it is quickly spotted and resolved.Finally, if there is a copper wire fault in the BT Openreach network, EFM is provided with “Service Level 4” which aims to have an engineer resolve the fault within 6 hours.

To order EFM, you will need to contact our sales team. Orders are subject to survey and take between 25 to 90 days to be delivered. EFM is available in 1500 of the most popular UK telephone exchanges and you can be upto approximately 4km from the exchange.

To use EFM, BT Openreach will install a number of analogue copper pairs and associated wall sockets. In addition an EFM network adaptor will be installed, which provides you with an Ethernet socket. You will need to have a spare power socket available within 1M of the BT sockets.

Upgrading EFM

It is not possible to upgrade from 2 Pair EFM to 4 Pair EFM or vice versa. Should you wish to upgrade in the future, you would have to cease your line and reinstall.

We can allow some overlap of the circuits to ensure that you do not lose connectivity in these circumstances, but this may be limited to the number of pairs available as exchange capacity may have changed from the time the original order was placed to the time you wish to upgrade.

EFM Pricing

  • Gradwell EFM services are available on a 1 year or a 3 year contract
  • 3 year deal: 50% discount on installation fee
  • The first months line rental and installation fees are payable upon placing of order
Product 2 Pair EFM 4 Pair EFM
Bandwidth 2Mb to 10Mb 2Mb – 20Mb
Installation £1,200.00 – 1 year contract
50% discount – 3 year contract
£1,650.00 – 1 year contract
50% discount – 3 year contract
Rental £240.00 per month
£2,880.00 per year
£350.00 per month
£4,200.00 per year


All orders of EFM Leased Lines are subject to a contract, which can be downloaded here. Please return any signed contracts by either fax (01225 800 801) or by post to EFM Orders, 26 Cheltenham Street, Bath, BA2 3EX, We can handle all this for you checking teh paperwork and tracking the order.


Cancellation time Cost
 From confirmation of installation date to 5 days before installation 75% of install fee
 From 4 days to 1 day before installation 95% of install fee
From installation to RFS (Ready for Service, approx 10 days) 100% of install fee, plus 100% of year 1 fees


Reason Cost
Visit charge (if not covered by service contract) Various – please refer
to Openreach pricing
Time related charges during installation (if not covered by service contract) Various – please refer
to Openreach pricing
 Excess construction charge (alternate location/additional infrastructure) Various – please refer
to Openreach pricing
 Time related charges during fault repair (if not covered service contract) £80.00 per hour
Special fault investigation (e.g. customer request for an engineer when not needed) £150.00
Aborted visit (e.g. customer not able to grant engineer access) £150.00
All prices are excluding VAT.

Indicative speeds

Like ADSL, the speed an EFM circuit will run at will depend on your distance from the exchange. However, with EFM we can guarantee the minimum speed you will receive1. In our trials, we found that most customers receive a faster speed service than we can guarantee.

EFM is also a symmetrical service – meaning that both the upload and the download speed are the same. This is great if you are making Internet Telephony calls, using video, or sending / uploading large files to the internet.

Distance from local exchange EFM 2 Pair EFM 4 Pair
0m-100m   10Mb 20Mb
 200m – 500m  8Mb 16Mb
 600m – 800m  7Mb 15Mb
 900m – 1100m  7Mb 14Mb
 1200m – 2100m  6Mb 14Mb
 2200m – 2300m  6Mb 13Mb
 2400m  6Mb 12Mb
 2500m  5Mb 12Mb
 2600m – 2700m  5Mb 11Mb
 2800m – 2900m  4Mb 10Mb
 3000m – 3100m  4Mb 9Mb
 3200m  3Mb 8Mb
 3300m  –  8Mb
 3400m  –  7Mb
 3500m – 3600m  –  6Mb
 3700m  –  5Mb
 3800m  – 4Mb
 3900m  –  3Mb
 4000m+  –
 1 If for some reason we are unable to deliver the service at the minimum guaranteed speed, you will have the option to cancel for a full refund, or continue with the slower service.
Calls and Lines Connectivity


Advanced Broadband will give you the fastest download speed you can get from your exchange, a generous bandwidth limit and direct connection to the Gradwell VoIP network, making it a perfect partner for Internet telephony.

  • No BT Line Rental
  • £25 pm
  • Generous 100Gb Peak Data Transfer per month
  • FREE Thomson Wireless Router
  • Voice prioritisation to support VoIP users
  • Get the fastest speed your line can give you, up to 16Mbps
  • 12 month contract, rolling monthly thereafter (30 day notice period)

Premier Broadband has all the benefits of our Advanced Broadband package, and more. 200Gb peak bandwidth and assured throughput mean you have the optimum amount of bandwidth for up to 10 concurrent Internet telephony calls.

  • No BT Line Rental
  • £50 pm
  • Enhanced Care and Service Level Agreement
  • 200Gb Peak Data Transfer per month
  • FREE Thomson Wireless Router
  • Assured throughput of at least 512Kb/s
  • Upload speeds of up to 1Mbps and download speed of up to 16Mbps
  • 12 month contract, rolling monthly thereafter (30 day notice period)

Premier Plus With Enhanced Care, a Service Level Agreement, fantastic upload speeds and assured throughput, Premier Plus Broadband is perfect for the largest of small businesses.

  • No BT Line Rental
  • £60 pm
  • Enhanced Care and Service Level Agreement
  • 200Gb Peak Data Transfer per month
  • FREE Thomson Wireless Router
  • Assured throughput of at least 1Mb/s
  • Upload speeds of up to 2.5Mb/s and download speed of up to 16Mb/s
  • 12 month contract, rolling monthly thereafter (30 day notice period)

VoIP Design and Sales

At we provide support,design and installation services. We have over 25 years of experience of the telecommunications industry and have the depth of knowledge to assist you in all aspects of telecommunications needs.

We have been working with VoIP systems since 1999, and VoIP networks from the Mid 1990s everything from small offices of 15 extensions to large multi-site networks with bespoke platforms. Our primary deployments are now based on the Asterisk open source platform from Digium.

Solutions have included:-

  • High capacity conference servers.
  • High availability redundant servers for emergency services dispatch.
  • Click2Call solutions
  • Call Centres
  • Office PABX systems

Asterisk is a complete telecommunications platform. From caller ID to multi-site networks, anything your telephone system can do, Asterisk can do better and maybe cheaper.

It includes a whole host of telephony features such as CTI, Voicemail, call conferencing and CRM integration.

We have tailored our Asterisk solution to behave like a normal PBX, with call barring, day and night service, call re-routing, DND, voice mail for all users and new features can be added easily at any time.

With Asterisk we can replace your PBX or complement an existing PBX by adding more functionality at a competitive price.

Recent systems have included a large hosted callback platform for a Major UK Car Parking company allowing drivers to make calls to the office at no charge to themselves.A system for a “online” Solicitors group to allow the tracking of calls and work-flow. We have recently deployed a system for to allow them to take table reservations for restaurants.

Recently customers have included Mendip Outdoor Pursuits, Purple CarParks, NorthCott Global Solutions and Qwtanet. These have been a mixture of onsite systems, hosted systems and solutions based on Asterisk running in a VMware environment.

Call or email us to discuss your requirements.

Case Studies

Restaurant Booking Solution.

We have been working with a client on a Hosted restaurant booking solution, providing the CTI and call tracking systems. This was complicated by the simple fact that the booking system was a closed system by another supplier.

The system works by the restaurant diverting their line to a DDI number we provide that sends the call to the system with the destination matching a defined number for that restaurant when the call enters the system the relevant settings are looked up in a database and audio message file, IVR options and CallerID name are set and the call is passed to the IVR. The caller then chooses their preferred option, The call can be depending of the time of day be passed to the call centre for a booking to be taken on the restaurants behalf or the call is passed to the restaurant where in many a Hosted Gigaset Dect handset is provided for them to take the booking or call the call centre for free.

The system has changed and evolved over time and by using Asterisk has meant that we can accommodate most requests for changes, Most recently we updated the statistics package to Asternic Pro

Asternic stats
Pro stats

Statistics. This has allowed much more detailed reports to be created for queues and agents.

The calls are delivered to the platform over a EFM circuit from providing quality and reliability combined with increased capacity over the original ISDN30 circuit.

For disaster recovery we provide a backup system in a data-centre that is kept in sync with the office system so in the case of power outage or system failure calls can be diverted to this system and calls take on mobile phones. Switching to back-up system is completed by the single click of a button on a web-page that instigates the diversion of the lines and starts the backup system automatically.

Currently we are migrating the database services off to a separate VMware server with 3 VMs, one for each of the core web or mysql servers. This will allow the service to scale as there are now over 1 million records per datatbase and it is showing no sign of slowing.

Design Installation Services Support Technical

Gradwell Approved Professional

A Gradwell Approved Professional (GAP) has a core set of knowledge required to succeed with the Gradwell product set and systems. To become a Gradwell Approved Professional partners must pass an examination and show an in depth knowledge of Gradwell Products and Voip Support.

This means you can be confident that they can:

  • Achieve consistent roll outs of reliable business telephony services.
  • Confidently resolve end user technical issues within an acceptable time frame.

To signup to Gradwell services with us CLICK HERE