These tests will show the sync status of the line and as well as some other details such as errors etc. They may also state if a fault has been identified.

BT ADSL Sync Status Test

Accessing This Feature

Access is via the Control Pages as follows:

Log in to the Control Pages with your xxx@a login
Click on the line you want to run the test on
Click on the Status Test button

Availability

Available on BT ADSL lines. This will report back the current sync status of the line, including error counts. This is non-intrusive and should not cause the line to drop.

Example output:

BT Test xDSL Status Check:Pass Standalone sub test passed successfully. Pass OK. Circuit In Sync.
BRAS=5779kbit/s FTR=6502kbit/s MSR=8128kbit/s ServOpt=1 I/L=A
Up Sync=854kbit/s LoopLoss=22.6 dB SNR=17.5 dB ErrSec=0 HECErr=0 Cells=1677609
Down Sync=6551kbit/s LoopLoss=40.8 dB SNR=13.5 dB ErrSec=0 HECErr=N/A Cells=4001712

This shows the line is In Sync, with an Up Sync of 854Kb/s, and a Down Sync of 6551Kb/s.

BT Test xDSL Status Check:Pass OK.pass OK. Circuit In Sync
BRAS=5000Kb/s FTR=6374Kb/s MSR=7968Kb/s ServOpt=1 I/L=A
Up Sync=448Kb/s LoopLoss=21dB SNR=24dB HIGH ErrSec=0 HECErr=0 Cells=928584990
Down Sync=6144Kb/s FTB LoopLoss=33dB SNR=10dB ErrSec=0 HECErr=0 Cells=-1335203176

This one shows that the line has a FTB - Fault Threshold Breach - ie, the Down Sync (6,144) is less than the Fault Threshold Rate (6,374). The line speed is below what it should be and would need looking in to. See: Category:Slow_ADSL

BT FTTC End to End Test

Accessing This Feature

Access is via the Control Pages as follows:

Log in to the Control Pages with your xxx@a login
Click on the line you want to run the test on
Click on the E2E Test button

Availability

Available on BT FTTC/FTTP lines.

This will run FTTC/FTTP specific tests and will suggest if it finds a fault or not.

Example result:

BT Test E2E Access Test/DCN:Inconclusive OR test pass. Unable to find the fault.
Down:40.0 (39.7/39.9/40.0) Up:10.0 (9.9/9.9/9.9)
NA 0.128M-40M Downstream, Interleaving Off - 0.128M-10M Upstream, Interleaving Off.
In Sync Pass:GTC_FTTC_SERVICE_0000 GEA service test completed and no fault found.

If the test says...

Down:40.0 (//) Up:10.0 (//)

...then the line is probably not in sync (no sync figures given).