User's Manual

Avaya Branch Gateway Manager 10.0 Page 280
15-601011 Issue 29r (Friday, November 02, 2012)B5800 Branch Gateway
· ProgressEndsOverlapSend
See Line | VoIP .
· SIP_OPTIONS_PERIOD=X (X = time in minutes)
The system sends SIP options messages periodically to determine if the SIP connection is active. See Options
Operations for information on when SIP options messages are sent.
The rate at which the messages are sent is determined by the combination of the Binding Refresh Time (in seconds)
set on the Network Topology tab and the SIP_OPTIONS_PERIOD parameter (in minutes). The frequency of
sent messages is determined as follows:
· If no SIP_OPTIONS_PERIOD parameter is defined and the Binding Refresh Time is 0, then the default value of
300 seconds is used.
· To establish a period less than 300 seconds, do not define a SIP_OPTIONS_PERIOD parameter and set the
Binding Refresh Time to a value less than 300 seconds. The OPTIONS message period will be equal to the
Binding Refresh Time.
· To establish a period greater than 300 seconds, a SIP_OPTIONS_PERIOD parameter must be defined. The
Binding Refresh Time must be set to a value greater than 300 seconds. The OPTIONS message period will be the
smaller of the Binding Refresh Time and the SIP_OPTIONS_PERIOD.
· VM_TRUNCATE_TIME=X (Range X = 0 to 7 seconds)
On analog trunks, call disconnection can occur though busy tone detection. When such calls go to voicemail to be
recorded or leave a message, when the call ends the system indicates to the voicemail server how much to remove
from the end of the recording in order to remove the busy tone segment. This amount varies by system locale , the
defaults being listed below. For some systems it may be necessary to override the default if analog call recordings are
being clipped or include busy tone. That can be done by adding a VM_TRUNCATE_TIME= setting with the required
value in the range 0 to 7 seconds.
· New Zealand, Australia, China, Saudi Arabia and Custom: 5 seconds.
· Korea: 3 seconds.
· Italy, Mexico, Chile, Colombia and Brazil: 2 seconds.
· Argentina, United States, Canada and Turkey: 0 seconds.
· All other locales: 7 seconds.
· VMAIL_WAIT_DURATION=X
The number of milliseconds to wait before cutting through the audio to Voicemail. Some delay is required to allow for
codec negotiation.
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