System information

ManualsBrandsBoots ManualsGadgetsCS-1000

371

372

373

374

375

376

377

378

379

380

372 Features

The ACF mode preserves the following

•

active media stream

• LED status of the Mute, Handsfree, and Headset keys

•

DRAM content

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.

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.

For more information about Active Call Failover, see Signaling Server IP

Line Applications Fundamentals (NN43001-125).

Enhanced UNIStim Firmware download

Enhanced UNIStim firmware download feature provides the following

functionality for IP Phones

• Enhanced firmware file header that includes the IT_TYPE and name

string for each IP Phone type.

•

Revised definition of the IP Phone identification of the IP Phone Client.

•

Maintenance Mode for the Signaling Server that allows more

simultaneous firmware downloads.

Maintenance Mode is not applicable to Voice Media Gateway 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.

•

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.

Enhanced UNIStim Firmware download feature requires a Signaling Server

to be present on the node. Without a Signaling Server, the only firmware

files available for downloading are the three available in CS Release 4.0

for the Phase 0/1/2 IP Phone 2001, IP Phone 2002, and IP Phone 2004.

For further information about Enhanced UNIStim Firmware download and

IP Phone firmware upgrade using Element Manager, see Signaling Server

IP Line Applications Fundamentals (NN43001-125).

Nortel Communication Server 1000

IP Phones Fundamentals

NN43001-368 05.02 26 May 2009