Spectralink BPX100 User Manual download pdf (Page 16)

SpectraLink Corporation NetLink e340/h340/i640 Wireless Telephones and Accessories User Guide

Part Number: 72-1004-01-H.doc Page 16

Extension

Displays the extension currently assigned to the handset. This

number is for display purposes only; entering it does not assign the

extension in the host telephone system.

Push-to-talk (PTT)

The NetLink i640 Wireless Telephone incorporates push-to-talk

functionality. PTT may be allowed or disallowed in the Admin

menu. If allowed, the user may enable or disable locally, and may set

the channel, tone volume and audio volume. The menu for push-to-

talk does not appear if PTT is disallowed on the Admin menu or if

no channel is enabled on the Admin menu.

Channel

The current channel is displayed. The user may enable any PTT

channel that has been allowed in the Admin menu by entering the

corresponding number from the keypad. If PTT has been enabled

in this handset, the default channel is the lowest allowed channel as

set in the Admin menu.

Enable/Disable

Enable turns on PTT mode. Disable turns off PTT mode. PTT is

disabled by default.



If PTT is allowed in the Admin menu and enabled by the user,

standby Battery Pack life is decreased to about 30 hours.

Audio volume

Tone volume

Used to adjust volume of PTT audio and tones. The graduated

volume bar indicates the levels. The Audio Volume setting may be

overridden by adjusting volume while the handset is in a push-to-

talk call. Select a volume level by pressing the

Up and Down side

buttons and then pressing the

OK softkey.

(Additional options may be present. Contact your system administrator for information.)

Push-to-talk operation

Overview

The push-to-talk feature allows NetLink i640 Wireless Telephones

to operate in a push-to-talk (PTT) group broadcast mode in

addition to the standard telephone operation.

The NetLink i640 Wireless Telephone supports eight multicast

channels with the current channel saved in memory on the handset.

A PTT call is initiated by pressing the

Talk button located on the

right side of the handset. All NetLink i640 Wireless Telephones

that are monitoring that channel will hear the transmission.

PTT dialogue is interrupted when you answer a PBX call. When the

PBX call is ended, PTT dialogue resumes if in an active call.

Selecting a channel

See Setting User Preferences above.

Call period

The two-way radio operates on the concept of a push-to-talk

session or call period. The push-to-talk call period begins with the

first transmission and ends when there has been no two-way radio

traffic on the channel for ten seconds.

The PTT mode controls the keypad during a push-to-talk call

period. Therefore it is not possible to use the keypad for any other

function such as accessing the on-hook menus or accessing an OAI

application unless the PTT call is Terminiated (see below).

However, it is possible to easily place a PBX call (see below).

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