Filter
Top Products
Chapter 4: Configuring your VOIP
Multi-Tech Systems, Inc. 47
FXO Supervision Parameter Definitions
Field Name
V
alues Description
Answer Supervision fields
Current Reversal Y/N When this option is selected, the FXO interface sends notice to make
connection upon detecting current reversal from the PBX (which
occurs when the called extension goes off hook).
Answer Delay Y/N When this option is selected, the FXO interface sends the connection
notice to the calling party only when the Answer Delay Timer expires.
The connection notice is sent regardless of whether or not the called
extension has gone off hook.
Answer Delay
Timer
1 – 65535
(in seconds)
When Answer Delay is enabled, this value determines when the FXO
interface sends the connection notice.
Tone Detection Y/N When selected, call disconnection will be triggered by a tone
sequence
Available Tones dial tone,
ring tone,
busy tone,
unobtainable tone
(fast busy),
survivability tone,
re-order tone
List from which tones can be chosen to signal call answer.
Answer Tones any tone from
Available Tones list
Currently chosen call-answer supervision tone.
Disconnect Supervision fields
There are four possible criteria for disconnection under FXO: current
reversal, current loss, tone detection, and silence detection.
Disconnection can be triggered by more than one of the three criteria.
Current Reversal Y/N Disconnection to be triggered by reversal of current from the PBX.
Current Loss Y/N Disconnection to be triggered by loss of current. That is, when Current
Loss is enabled (“Y”), the MultiVOIP will hang up the call at a specified
interval after it detects a loss of current initiated by the attached
device.
Current Loss Timer 200 to 2000
(in milliseconds)
Determines the interval after detection of current loss at which the call
will be disconnected.
Silence Detection
Enable
Y/N Enables/disables silence-detection method of supervising call
disconnection.
Silence Detection
Type
One-Way or
Two-Way
Disconnection to be triggered by silence in one direction only or in
both directions simultaneously
Silence Timer in
seconds
integer value Duration of silence required to trigger disconnection.
Table is continued on next page…