NetComm 4-port and 8-port Gateways Gateway Series - Manual (Page 50)

50 SmartVoice Gateway(s) User Guide
YML83 Rev
CPT/Cadence Settings
CPT/Cadence setting parameters serve as the basis of an FXO interface to determine whether or not a
PSTN-call receiving party has hung up the phone. If the following parameters differ from the parameters
of the actual assigned lines, it could cause the FXO to continue to engage a line.
Busy Tone Cadence Measurement
• Busy Tone Cadence Measurement and auto learning: Provides a solution of FXO integrated
with PSTN or PBX. FXO will learn the busy tone automatically.
• BTC Detection Sensitivity: The more sensitivity, the more quickly the system will cut off the call. If
the system often cuts off an un-finished call, select less sensitivity.
CPT parameters Table
The CPT has 3 sets of parameter tables. You can adjust it based on local PSTN or PBX.
Moreover, users can use CPT Auto Detect to detect CPT parameters. Instructions are shown in the
following section. The method to detect CPT is as follows: