We've identified certain scenarios where we can add value over and above KBD. Please read the guidance below before contacting our Failed Retest team.

Where you suspect a cross-jumper is the cause of the issue. Typical example is a post migration failure.

We will only accept e-chat queries when the CCSNR request has been initiated but not completed within 4 hours.

We will not accept queries on WBC (21CN) for stuck BRAS issues as there is an instant recalculation of the BRAS Profile after a new sync event (or router reboot).

We will accept BRAS profile mismatch queries on 20 CN products as long as there is no pending change indicated on the additional information tab on KBD.

We will not accept queries on KBD outcomes CC13 and CC14 as there is a profile change in progress.

Where you have a No Sync or No Connection fault during the initial 10 day stabilisation.

If you believe this is a possible port issue then BTW will complete further diagnostics in attempt to resolve the issue remotely or to determine the next appropriate action. i.e. TAM failure.

Where you believe the circuit mapping has been built incorrectly and you tried to flex the circuit and complete a port reset via self-serve. Typical Knowledge Based Diagnostic (KBD) outcome codes will include RADXX.

You can start an eChat with our agents by selecting the Failed Retest eChat button at the bottom of this page - you'll find it under Get in touch. You don't need to log in to use eChat.

At the end of each chat session you will be presented with a very short questionnaire. We'd really appreciate your feedback and comments to improve the eChat capability further, so we'd be grateful if you could complete this.

We hope you enjoy using eChat and look forward to your feedback.

If you require technical support or experience an issue with the eChat system please contact the BT Wholesale Systems Support helpdesk on 0800 783 5639 and select option 1. Please note that this number is for eChat system related enquiries only.

To use eChat you need:

- Windows® 7, Vista, XP or 2000; Windows Server 2003 or 2008; or Mac OS X v10.4 or later
- Internet Explorer® 6.0 or later, Mozilla® Firefox 3.0 or later or Safari™ 4.0 or later
- Adobe® Flash 10 installed

BT Wholesale operates a zero tolerance policy regarding abusive behaviour towards our staff. This applies just as much to eChat as to telephone calls. The use of inappropriate or abusive language may result in your chat session being terminated. Also, please note that all eChats are recorded.