Likely Premises Problem ( less than 85ft)
1001
Likely Extreme Premises Problem (Less than 85ft)
1002
Possible Premises or Drop Problem (Less than 170ft)
1003
Possible Drop or Tap Problem (Less than 255ft)
1004
Primary Echo is $T$T
1000
Outside Plant Problem($D$ foot cavity)
2001
Noise or ingress present
3000
Severe noise or ingress present
3001
Modem Distorting at Max Transmit (premises)
3002
Severe Group Delay
4002
Modem not responsive or not supported
9999