AMX SIP Communications Gateway CSG-500 Operation/Reference Manual page 30

Telephone System Configuration
New Trunk Analog Page Options (Cont.)
Answer on
Polarity Switch
Hangup on
Polarity Switch
Call Progress
Progress Zone
Use CallerID
Caller ID Start
Caller ID
Pulse Dial
CID Signalling
Mailbox
Flash Timing
Receive Flash
Timing
Once you have completed the Analog Trunk definition, click Add. A message will display letting you know
that for these changes to be completed, you must reboot your CSG. Before doing so, you may wish to click the
Edit button associated with an analog trunk to configure additional options for tuning the audio.
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If this option is enabled the reception of a polarity reversal will
mark when an outgoing call is answered by the remote party.
In some countries, a polarity reversal is used to signal the
disconnect (or hang up) on a phone line. If the Hangup on Polarity
Switch option is enabled, the call will be considered "hung up" on
a polarity reversal.
On trunk interfaces it can be useful to follow the progress of a call
through Ringing, Busy, and Answering. If turned on, Call Progress
attempts to determine answer, busy, and ringing on phone lines.
This feature is highly experimental and can easily detect false
answers and hang-ups. This may cause a hang up during the
middle of a call. Few zones are supported, but can be selected
with the Progress Zone option.
This option defines the call progress zone for the trunk interfaces.
If this option is enabled Caller ID detection is also enabled.
This option allows one to define the start of a caller ID signal.
Select Ring from the drop-down list to start caller ID when a ring
is received, or Polarity, to start caller ID when a polarity reversal is
detected.
This option allows the lines to report the caller ID string as
received from the telco, or as a fixed value by using the advanced
option.
If this option is enabled, pulse dialing, instead of DTMF, will be
used.
This option defines the type of caller ID signalling to use.
• bell - Bell202 as used in the United States
• v23 - Used in the UK
• v23_jp - Used in Japan
• dtmf - Used in Denmark, Sweden, and Holland
This setting allows any message waiting indicator received
across the associated trunk to be forwarded to a local User, such
as a SIP phone.
Flash Timing defines the duration, in milliseconds, that the CSG
will use if it is sending a flash signal to another system.
Receive Flash Timing defines the duration, in milliseconds, that
the CSG requires to consider a flash operation it receives to be
valid.
CSG SIP Communications Gateway Operation/Reference Guide