Push-to-talk (PTT), is also known as Press-to-Transmit, a method of having conversations where the user can change between talking and listening by either holding or releasing a button on the device. 43 more words
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Select Service offer (PTT) Push-to-Talk Nortel 1100 series handset pieces.
Our high quality fully compatible handset solution is ideal for Banks, Military, Police force, Emergency services, and financial trading etc. 59 more words