What causes telephony line errors?

Loss of signal (LOS, SL)
This is most likely caused by a break in the wiring between a DTTA on your Blueworx Voice Response system and the network or the switch. Check all connections and cables, replacing cables where necessary. If the problem persists, contact your network service provider.
BPV (bipolar violation), ER (error rate)
High error rates can be caused by a noisy line. Check all connections and cables, replacing cables where necessary. If the problem persists, contact your network service provider.
Other errors
If communication problems exist between Blueworx Voice Response and the network, check your configuration, because the most likely cause is a mismatch in configuration; for example, a line protocol.