Analog Trunks - AMX SIP Communications Gateway CSG-500 Operation/Reference Manual

Trunk definitions are used in calling rules, dial plans, and call routing, etc. You can use a mixture of both
analog and VoIP trunks.

Analog Trunks

Select the Analog Trunks tab to access the Manage Analog Trunks page. Here you can create an analog
trunk definition for each analog port on your CSG. Click New Analog Trunk to open the New Analog Trunk
definition page.
FIG. 14 New Analog Trink Definition
The following options appear on the New Analog Trunk page:
New Analog Trunk Page Options
Option
Channels
Trunk Name
Busy Detection
Busy Count
Busy Pattern
Ring Timeout
CSG SIP Communications Gateway Operation/Reference Guide
Description
Select one or more analog channel (port) to be associated with
this trunk.
Specify a unique name to help you identify this trunk when it is
referred to in other areas such as calling rules.
This setting is used to detect far end hangup or for detecting busy
signal. Select Yes to enable this feature.
If Busy Detection is enabled it is also possible to specify how
many busy tones to wait for before hanging up. The default is 4,
but better results may be achieved by setting to 6 or 8. The higher
the number, the longer it will take to hangup a channel. A higher
number also lowers the possibility of false detections.
If Busy Detection is enabled, it is also possible to specify the
cadence of your busy signal. In many countries it is 500
milliseconds on, 500 milliseconds off. Without Busy Pattern
specified, the CSG will accept any regular sound-silence pattern
that repeats multiple times as a busy signal. If you specify Busy
Pattern, then the CSG will check the length of the sound (tone)
and silence, which will further reduce the chance of a false
positive.
Trunk (FXO) devices must have a timeout to determine if there
was a hangup before the line was answered. This value can be
configured to shorten how long it takes before the CSG considers
a non-ringing line to have hung up.
Telephone System Configuration
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