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Push-to-talk - General
What is Enhanced Push-to-talk (EPTT)?
• Enhanced Push-to-talk (EPTT) 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
EPTT contacts by eliminating the dialing and
ringing steps in a regular cellular call. EPTT
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 EPTT work?
• EPTT 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 EPTT button
pressed, while others can only listen. Thereafter
the speaker releases the EPTT button, and the
next speaker presses the button and starts
talking.
• An EPTT call will end when the caller ends the
call. However, other speakers of the group can
end their call session, any time.
Is EPTT number different from my mobile number?
No, the EPTT phone number is the same as your
10 digit mobile number. But this number should be
provisioned by the operator for EPTT to work.
Can I make/receive an EPTT call without using the
speaker phone?
EPTT calls are generally started over the speaker
phone but can be changed to the earpiece at
anytime. You can listen to EPTT calls through your
phone’s speaker or earpiece. Press the center Menu
key to turn the speaker On/Off.
You can route the calls through earpiece by default.
To enable this, select earpiece/mute/off option in the
privacy mode when the phone’s native prole is set
to Silent.
you can also Disable speaker in PTT settings to
route the tone and media through earpiece
What will be the status of the EPTT application if I
activate Flight mode?
You will logout of EPTT and the presence status
will change to Ofine state. If you try to access
EPTT, 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. There can be upto and 30 sub entries
for each entry.
Is EPTT secure?
Yes, EPTT is secure because only a known device
can access the network and all data is completely
encrypted over a secure HSPA channel.
