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Configurable through the configuration files. Configurations
done through the 480i's Options List or the Vertical 480i web
client affect the first line only.
Parameter sip lineN screen
name
This is used to display text on the screen of the phone. You
may want to set this parameter to display the phone user's
name.
Description
Text
Format
Not Applicable
Default Value
N in the sip lineN screen name ranges from 1 to 9
Range
sip line1 screen name: Jane Jones
Example
Configurable through the configuration files only
Parameter sip nortel nat
timer
This parameter is used to specify the time in seconds for the
refresh period for the connection through the Nortel NAT.
Description
Integer
Format
60
Default Value
Not Applicable
Range
sip nortel nat timer: 120
Example
Configurable through the 480i's Options List, the Vertical
480i web client or through the configuration files
Parameter sip nortel nat
support
This parameter allows the phone user to specify whether
they are behind a Nortel NAT. Enable this feature if using a
Nortel call server.
Description
Integer
Format
0
Default Value
0-1
Range
sip nortel nat support: 1
Example
Configurable through the configuration files only
Parameter sip explicit mwi
subscription
Flag to indicate the phone needs to subscribe to message
waiting indication (rather than assuming implicit
subscription).
Description
integer
Format
0
Default Value
0,1
Range
30 SIP 480i IP Phone Admin Guide