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Push-to-talk - General
What is Push-to-talk (PTT)?
• Push-to-talk (PTT) is a special feature on a mobile
phone that combines the functionality of a walkie-
talkie or 2-way radio with the normal handset
features. It provides simple communication to a
group of people with just a touch of a button.
• It allows the customer to instantly reach other PTT
contacts by eliminating the dialing and ringing steps
in a regular cellular call. PTT calls can be made to
one person or to a group of people.
• It is also referred to as Push to Talk over Cellular
(PoC ).
How does PTT work?
• PTT is based on half-duplex communication (ability
to speak over the same channel but not at the same
time). It uses Voice over internet protocol (VoIP).
• The person who talks, keeps the PTT button
pressed, while others can only listen. Thereafter
the speaker releases the PTT button, and the next
speaker presses the button and starts talking.
• A PTT call will end automatically after approximately
15 secs if no one presses the PTT button. Otherwise
in a two way call, the call will end when one person
hits the end key.
Is PTT number different from my mobile number?
No, the PTT phone number is the same as your 10 digit
mobile number. But this number should be provisioned
by the operator for PTT to work.
Can I make/receive a PTT call without using the
speaker phone?
Yes, you need to toggle the speaker ON/OFF option
during the PTT call. Go to PTT settings & Turn OFF the
speaker mode. You can also press the center Menu key
to turn the speaker On/Off.
What will be the status of the PTT application if I
activate Flight mode?
You will logout of PTT and the presence status will
change to Ofine state. If you try to access PTT, you will
get a “Data connection is currently unavailable. Please
try again later” message.
How many entries are displayed in the Call history
screen?
A maximum of 100 entries are displayed in the call history
screen.
Is PTT secure?
Yes, PTT is secure because only a known device can
access the network and all data is completely encrypted
over a secure HSPA channel.
Can I access my other phone features like regular
voice calls, browser, messaging etc. While in active
PTT Session?
Yes You can make regular voice calls, access browser,
messaging while in the active PTT session by pushing
the PTT call to Background from the Options > Go back
from the PTT call session screen.
What are PTT contacts?
PTT contacts are different from your phone address
