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EFM Internet

Uncompromising reliability with EFM leased lines from only £240 per month

EFM (Ethernet in the First Mile) provides high speed, reliable internet connectivity and is ideal for businesses who have outgrown ADSL broadband, but where fibre optic services are too expensive or unavailable. EFM will deliver speeds of up to 20Mbps with a minimum guaranteed speed.

  • Highly reliable - multiple wires which are proactively monitored
  • Symmetrical - the same speed both up and down
  • Fast - Up to 20Mbps with minimum guaranteed speed


EFM speed promise

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.

Indicative speeds

Distance from exchangeEFM 2 pairEFM 4 pair
0m-100m 10Mbps 20Mbps
200m - 500m 8Mbps 16Mbps
600m - 800m 7Mbps 15Mbps
900m - 1100m 7Mbps 14Mbps
1200m - 2100m 6Mbps 14Mbps
2200m - 2300m 6Mbps 13Mbps
2400m 6Mbps 12Mbps
2500m 5Mbps 12Mbps
2600m - 2700m 5Mbps 11Mbps
2800m - 2900m 4Mbps 10Mbps
3000m - 3100m 4Mbps 9Mbps
3200m 3Mbps 8Mbps
3300m - 8Mbps
3400m - 7Mbps
3500m - 3600m - 6Mbps
3700m - 5Mbps
3800m - 4Mbps
3900m - 3Mbps
4000m+ - -

1If 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.

EFM Pricing

2 Pair (1 Yr Contract) 2 Pair (3 Yr Contract) 4 Pair (1 Yr Contract) 4 Pair (3 Yr Contract)
Install cost £1,200.00 £600.00 £1,650.00 £825.00
Monthly cost £175.00 £175.00 £270.00 £270.00
Annual cost £2,100.00 £2,100.00 £3,240.00 £3,240.00

Call 01225 800 123 now to understand more, get a quote or get started. It's that easy.


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EFM Reliability

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, 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.

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.

Ordering EFM

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.