Nortel Networks NN10042-116 manual Message Alert, Push-to-talk PTT, Standby

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