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Q.

What is ~push to talk~ featur in mobile phones?

Tags: mobile phones, featur
Asked by Umesh Motwani, 14 Jun '07 02:16 pm
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Answers (3)

1.

Push-to-Talk (PTT), also known as "Press-to-Transmit", is a method of conversing on half-duplex communication lines, including two-way radio, using a momentary button to switch from voice reception mode to transmit mode.
For commercial, family and amateur two-way radios, PTT is a button that is pressed when needing to transmit with the radio on the tuned frequency or channel. While the PTT button remains unpressed (or "unkeyed"), any radio traffic that is received on the selected channel or frequency is heard through the radio's speaker. Unless the radio supports full-duplex operation, received audio is usually muted while the PTT button is pressed. Simultaneous full-duplex transmission and reception on a radio is generally not supported unless either the transmit and receive frequencies have significant separation between the two frequencies, or two different antennas are used with enough distance between them, or a cavity filter is used, due to an effect known as desensing which can ...more
Answered by GOPI KUMAR, 14 Jun '07 02:21 pm

 
  
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2.

Push to talk is a group communication mechanism where you make one call to a group of users and talk to them simultaneously. More like the police walkie talkie
Answered by Amitkeerti, 14 Jun '07 02:17 pm

 
  
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3.

Third generation innovations
Answered by AANEWS AGENCY, 17 Dec '09 07:29 pm

 
  
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