3600 Series Wireless Phone User Guide
3600 Series Wireless User Guide Page 22
IP Office [15-601104] Issue [1] (1 June 2006)
Using Push to Talk (PTT)

Call Period

The two-way radio operates on the concept of a push-to-talk (PTT) session or call period. The PTT 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 PTT call period. Therefore, it is not possible to use the
keypad for any other function (for example, accessing the on-hook menu or accessing an OAI
application) unless the PTT call is terminated. It is possible to place a PBX call.
Note
In this section, Talk refers to the PTT button located on the right side of your 3626 phone.
To initiate a call:
Press Talk and wait briefly for the channel to activate. When Transmitting is displayed, begin
talking.

Transmitting

When a call has been initiated, hold the phone two inches from your mouth and talk into the microphone.
When Talk is released, the phone enters a waiting state, where it monitors the channel for up to ten
seconds.
If no transmission occurs during the ten second countdown period, the phone reverts to idle state.
To initiate subsequent transmissions:
Using any 3626 phone using the same channel, press Talk and begin talking. The display shows
the current active channel.

Receiving

When your phone receives a PTT transmission, a 'receiving alert' sound plays and the phone enters
receive state.
In this state, the phone receives all conversations on the selected channel and ignores Talk. The display
shows the current active channel, the caller ID information of the current transmitter and an indication
that the phone is receiving a broadcast transmission.
The caller ID is protocol specific. In most cases, it is the extension number programmed in the phone
from the on-hook user menu.
At the end of the transmission, the phone enters the waiting state where it monitors the channel for up to
ten seconds and Waiting is displayed. If no other transmission occurs within ten seconds, the phone
reverts to idle state.
To change the PTT volume:
Press Up or Down (on the left side of the phone). A separate volume is maintained for PTT calls
with the current volume selection retained in memory.