3Com VCX V7122 User Manual page 97

ini File Field Name
*
Web Parameter Name
NTPServerIP
[NTP Server IP Address]
NTPServerUTCOffset
[NTP UTC Offset]
NTPUpdateInterval
[NTP Update Interval]
Disconnect Supervision Parameters
DisconnectOnBroken
Connection
[Disconnect on Broken
Connection]
BrokenConnectionEvent
Timeout
[Broken Connection
Timeout]
EnableSilenceDisconnect
[Disconnect Call on
Silence Detection]
FarEndDisconnectSilence
Period
[Silence Detection Period]
FarEndDisconnectSilence
Method
[Silence Detection
Method]
3Com VCX V7122 SIP VoIP Gateway User Manual
Valid Range and Description
IP address (in dotted format notation) of the NTP server.
The default IP address is 0.0.0.0 (the internal NTP client is disabled).
For information on NTP support, see
on page 67.
Defines the UTC (Universal Time Coordinate) offset (in seconds) from the
NTP server.
The default offset is 0. The offset range is –43200 to 43200 seconds.
Defines the time interval (in seconds) the NTP client requests for a time
update.
The default interval is 86400 seconds (24 hours). The range is 0 to
214783647 seconds.
Note: It isn't recommended to be set beyond one month (2592000 seconds).
0 = Don't release the call.
1 = Call is released If RTP packets are not received for a predefined timeout
(default).
Note 1: If enabled, the timeout is set by the parameter
'BrokenConnectionEventTimeout', in 100 msec resolution. The default
timeout is 10 seconds: (BrokenConnectionEventTimeout =100).
Note 2: This feature is applicable only if RTP session is used without Silence
Compression. If Silence Compression is enabled, the Gateway doesn't
detect that the RTP connection is broken.
Note 3: During a call, if the source IP address (from where the RTP packets
were sent) is changed without notifying the Gateway, the Gateway will filter
these RTP packets. To overcome this issue, set
'DisconnectOnBrokenConnection=0'; the Gateway doesn't detect RTP
packets arriving from the original source IP address, and will switch (after
300 msec) to the RTP packets arriving from the new source IP address.
The amount of time (in 100 msec units) an RTP packets isn't received, after
which a call is disconnected.
The valid range is 1 to 1000. The default value is 100 (10 seconds).
Note 1: Applicable only if 'DisconnectOnBrokenConnection = 1'.
Note 2: Currently this feature works only if Silence Suppression is disabled.
1 = The gateway disconnect calls in which silence occurs in both (call)
directions for more than 120 seconds.
0 = Call is not disconnected when silence is detected (default).
The silence duration can be set by the 'FarEndDisconnectSilencePeriod'
parameter (default 120).
Note: To activate this feature set DSP Template to 2 or 3.
Duration of silence period (in seconds) prior to call disconnection.
The range is 10 to 28800 (8 hours). The default is 120 seconds.
Applicable to gateways, that use DSP templates 2 or 3.
Silence detection method.
0 (None) = Silence detection option is disabled.
1 (Packets Count) = According to packet count.
Simple Network Time Protocol Support
97