The following settings are set to match the system locale selected when a system is first installed. The settings match the values typically encountered in the selected locale. However, they are all editable post installation.
Setting
Configurable
CLI Type
The method used to receive incoming caller ID information.
Termination Impedance
The trunk impedance settings.
Balance Impedance
Busy Tone Detection
The tone which, if detected, indicates that the called destination is busy. This can be adjusted through the System > Telephony > Tones & Music > Busy Tone Detection settings. The default System Frequency matches the locale specific setting.
Busy Tone Detection Time
The duration of busy tone after which the IP Office system will disconnect an analog trunk when using Busy Tone Detection.
Disconnect Clear
Disconnect clear (also known as 'Line Break' or 'Reliable Disconnect') is a method used to signal from the line provider that the call has cleared. Adjustable through the Line > Analog Line Options.
The time must be less than the actual disconnect time period used by the line provider by at least 150ms.
The system also uses 'Tone Disconnect', which clears an analog call after 6 seconds of continuous busy tone (see above).
If the setting System > Telephony > Telephony > Unsupervised Analog Trunk Disconnect Handling is enabled, this setting is greyed out and disconnect clear disabled.
Hook Flash Pulse Width
Set the time interval for the flash pulse width. Adjustable through the Line > Analog Line Options > Flash Pulse Width setting.
Ring Detection
These settings are used for ring detection. These are adjustable through the Line > Analog Line Options > Ring Detection settings:
Ring Persistency - The minimum duration of signal required to be recognized.
Ring Off Maximum - The time required before signaling is regarded as ended.
