Broadband annex M
Annex M is a variation of the ADSL2+ standard that allows more uplink on the line but in return sacrifices some of the downlink speed. This is a standard option on our BE lines, but on BT 21CN lines this is a chargeable extra service. It costs £12.00 pcm† per month.
How to order
When you order broadband you are asked if you would like enhanced care service on the line or not. In the same part of the order page, you can add annex M to an existing line. You can remove it later if you wish using the order pages. Removing annex M cost £10.00 (there is no cost for adding it).
Note: Your equipment must support ADSL2+ and Annex M to take advantage of this service. Very long lines may get little or no benefit from this service.
Some routers do have problems negotiating Annex M with the DSLAM equipment in the exchange. For example, the ZyXEL P660R-D1 has problems with some models of DSLAM. -do contact support for help if needed.
