Nortel 1110 Guida Utente
Features overview
Page 497 of 630
IP Phones
Description, Installation, and Operation
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LED status of the Mute, Handsfree, and Headset keys
•
DRAM content
Note: All other elements (feature keys, soft keys and text areas) are
retained until the user presses a key or the connection with the Signaling
Server is resumed. If the user presses a key during the failover, the
display is cleared and a localized “Server Unreachable” message is
displayed.
retained until the user presses a key or the connection with the Signaling
Server is resumed. If the user presses a key during the failover, the
display is cleared and a localized “Server Unreachable” message is
displayed.
The IP Phone uses this new mode of reregistration only when the Signaling
Server explicitly tells the IP Phone to do so. IP Phones clear all call
information if they register to a Signaling Server or Line Terminal Proxy
Server (LTPS) that does not support the ACF feature.
Server explicitly tells the IP Phone to do so. IP Phones clear all call
information if they register to a Signaling Server or Line Terminal Proxy
Server (LTPS) that does not support the ACF feature.
For more information on Active Call Failover, see IP Line: Description,
Installation, and Operation (553-3001-365).
Installation, and Operation (553-3001-365).
Enhanced UNIStim Firmware download
Enhanced UNIStim firmware download feature provides the following
functionality for IP Phones:
functionality for IP Phones:
•
Enhanced firmware file header that includes the IT_TYPE and name
string for each IP Phone type.
string for each IP Phone type.
•
Revised definition of the IP Client’s IP Phone identification.
•
Maintenance Mode for the Signaling Server that allows more
simultaneous firmware downloads.
simultaneous firmware downloads.
Note: Maintenance Mode is not applicable to Voice Media Gateway
Cards.
Cards.
•
Identification of the registered IP Phones using string names and detailed
identification of IP Phones that register as emulations of the base
IP Phone 2001, IP Phone 2002, and IP Phone 2004.
identification of IP Phones that register as emulations of the base
IP Phone 2001, IP Phone 2002, and IP Phone 2004.
•
UNIStim IP Phones are able to register with older versions of firmware
when the UFTP servers are busy, and are periodically offered the option
start the firmware upgrade to the IP Phone.
when the UFTP servers are busy, and are periodically offered the option
start the firmware upgrade to the IP Phone.