Nortel Networks NN10042-116 - Manual (Page 23)

IP Phone handset display 23
However, if a wireless handset is out of contact with the system for four
seconds (worst case scenario) during ongoing UNIStim messaging, a
UNIStim failure can occur and cause the wireless handset to lose the
UNIStim association with the CICM.
Message Alert
The Nortel IP Phone WLAN Handset 6100 Series wireless handsets
support text messaging applications through the WLAN Application
Gateway 2246. If text messaging functions are programmed, the handset
can receive text messages. While accessing text messages, the handset
is in messaging mode and incoming calls ring by using the second call
ringing sound. The * and # keys can be used to move left to right.
Custom text messaging applications can be programmed for your facility.
This mode is activated through FCN+8, 9, # or * if programmed.
Special configuration is required to enable the handsets to communicate
with the optional WLAN Application Gateway 2246. For more information,
see
"2246 Application Gateway" (page 28) .
Push-to-talk (PTT)
The Push-to-talk (PTT) feature is only available on the WLAN Handset
2211, WLAN Handset 2212, and WLAN Handset 6140. With the PTT
feature activated, handsets can operate in a PTT group-broadcast mode
like a two-way radio, in addition to standard telephone operation. These
handsets use channels for incoming and outgoing radio communication.
The WLAN Handset 6140 supports 24 multicast channels with the current
channel saved in memory on the wireless handset.
While PTT is active, the handset is in PTT mode and the keypad cannot
be used for any other functions, however, you can receive and place calls.
Push-to-talk (PTT) is enabled by the system administrator and set up by
the user through the Config Menu options. If the system administrator
disables the PTT feature, the PTT options do not appear in the Config
Menu.
Standby
Standby is the normal mode when the handsets are online but inactive. In
Standby mode, the handset is still in communication with the call server.
The handset can receive calls and access the User Option menu. When
you are in Standby mode, the terminal displays the
EXT----- screen. To
perform other operations, the handset must be Active (off-hook).
Carrier VoIP
Nortel IP Phone WLAN Handset User Guide (CICM)
NN10042-116 04.01 Standard
4 July 2008
Copyright © 2008 Nortel Networks
.