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Telephony Interface Port Configuration Commands
28
set port_cfg fxs onhook_detect
This command is used to set the time to wait, in milliseconds, before an on-hook condition is
declared. For preventing from mistakenly interpreting noise signal as on-hook, when a hook
switch on state is detected on a FXS port, the switch on state must sustain for at least this
duration, otherwise it is no regarded as a on-hook.
set port_cfg fxs onhook_detect milliseconds
Syntax description
milliseconds Time in milliseconds, ranging from 1 to 1000.
Factory default
800
Related Command
set port_cfg fxs onhook_db
set port_cfg fxs ring_id
A ringing signal is a repetition of ring-on and ring-off cycles (the so-called cadence). The ITG
can generate 11 types of ring cadence, each having a unique ID, on/off cadence and total
ringing duration. Types of ringing cadence and their IDs are shown in the following table.
Ring-On/Off Cycle Ringing
ID On Off On Off On Off Duration
0 2.0 4.0 Forever
1 1.0 3.0 3 minutes
2 0.8 0.4 0.8 4.0 3 minutes
3 0.4 0.2 0.4 0.2 0.8 4.0 3 minutes
4 0.3 0.2 1.0 0.2 0.3 4.0 3 minutes
5 0.5 0.1 0.6
seconds
6 0.5 0.2 0.3 0.2 0.5 3.0 3 minutes
7 2.0 4.0 3 minutes
8 3.0 5.0 3 minutes
9 0.5 0.1 0.6
seconds
10 1.0 3.0 3 minutes
Table 4-1 Ring and Ring ID supported by ITG
This command is used to select which ring ID is to use on a FXS port.
set port_cfg fxs ring_id ring_id
Syntax description
ring_id Ring ID, ranging from 0 to 10.