Mitel Deutschland GmbH 68635RFP36U-01 用户手册
SIP-DECT OM System Manual
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5.4.3.2 Advanced settings
You can set more advanced SIP settings for the system on the Advanced settings menu.
You can set more advanced SIP settings for the system on the Advanced settings menu.
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Explicit MWI subscription: Some SIP Call Managers such as the Asterisk support Message Waiting
Indication (MWI) based on /21/. An MWI icon is displayed on a DECT phone (Mitel DECT 142 / Mitel
142d, Mitel 600) if the user has received a voice message on his voice box which is supported by the
SIP Call Manager. If
142d, Mitel 600) if the user has received a voice message on his voice box which is supported by the
SIP Call Manager. If
Explicit MWI subscription is enabled, the OMM sends explicit for each DECT
phone an MWI subscription message to the Proxy or Outbound Proxy Server.
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User agent info: If this option is enabled, the OMM sends information on his version inside the SIP
headers User-Agent/Server.
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Dial terminator: The dial terminator is configurable (up to 2 characters; “0” – “9”, “*”, “#” or empty).
The default dial terminator is “#”. A dial terminator is necessary if digit treatment shall be applied on
outgoing calls and overlapped sending is used.
outgoing calls and overlapped sending is used.
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Registration failed retry timer: Specifies the time, in seconds, that the OMM waits between
registration attempts when the registration is rejected by the registrar. Default is “1200” seconds.
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Registration timeout retry timer: Specifies the time that the OMM waits between registration
attempts when the registration timed out. Default is “180” seconds.
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Session timer: The interval, in seconds, between re-INVITE requests sent from the OMM to keep a
SIP session alive. The minimum session timer is 90 seconds and the maximum is 86400 seconds.
The default is 0 (i.e., feature is disabled).
The default is 0 (i.e., feature is disabled).
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Transaction timer: The time period in milliseconds that the OMM allows a call server (proxy/registrar)
to respond to SIP messages that it sends. If the OMM does not receive a response in the time period
designated for this parameter, the OMM assumes the message as timed out. In this case the call
server is recorded to the blacklist. Valid values are “4000” to “64000”. Default is “4000” milliseconds.
designated for this parameter, the OMM assumes the message as timed out. In this case the call
server is recorded to the blacklist. Valid values are “4000” to “64000”. Default is “4000” milliseconds.
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Blacklist time out: The time period in minutes an unreachable call server stays in the blacklist. Valid
values are “0” to “1440”. Default is “5” minutes.
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Incoming call timeout: The time, in seconds, that the OMM waits for a user to accept an incoming
call before rejecting the call automatically. The minimum time is 30 seconds and the maximum is 300
seconds. The default is 180 seconds.
seconds. The default is 180 seconds.