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Chapter 9 The VoIP General Screens
WiMAX Device Configuration User’s Guide
155
9.4 SIP Settings
Click VoIP > General > SIP to set up session timer on the WiMAX Device. See Section 10.8 on
page 167 for more information on SIP.
Figure 86 SIP
The following table describes the labels in this screen.
9.5 Speed Dial
Speed dial allows you to use a shorter number for dialing frequently used phone numbers.
Click VoIP > General > Speed Dial to add, edit, or remove speed-dial rules.
Figure 87 Speed Dial
The following table describes the labels in this screen.
Table 68 SIP
LABEL DESCRIPTION
Session Timer
Enable
Select this to activate the WiMAX Device’s SIP Session Timer. SIP Session Timer
is a function used by both of the communication peers to determine if the call
session is still active (alive) or not. It uses the method specified in the following
Refresh Method field to periodically refresh the SIP sessions.
Refresh Method Select the method to be used for periodically refreshing SIP sessions, to
determine if the session is still active. Select UPDATE to use Update requests to
refresh the session and select INVITE to use Re-Invite requests. You should use
the same method as the peer device.
The Update method uses less overhead than Re-Invite, but is not as widely
supported as Re-Invite. By default the WiMAX Device is set to use the UPDATE
method. When set to UPDATE, the WiMAX Device can also revert to using the
INVITE method for SIP session refresh, depending on the method supported
and allowed by the peer device.
Table 69 Speed Dial
LABEL DESCRIPTION
Speed Dial Rules - This is a list of speed dial numbers. To edit an existing speed dial rule, you can
click the row for the rule and editable fields will appear.
Active This field displays whether the rule is activated or not.