Push2Talk allows you to use your Blackberry® Smartphone as a walkie talkie.
You only need to pay once, no hidden fees.
Push2Talk uses Blackberry® PIN messages to communicate, however, Push2Talk does not simply record voicenotes and send them after they are recorded, Push2Talk uses an advanced algorithm to transfer your voice while it is being recorded, simulating a real walkie talkie feeling and performance.
Push2Talk allows you to send messages of 10 seconds in length at a time, and thanks to its unique algorithm, Push2Talk can transfer your messages with very small delays, only a few seconds in good connection.
Sounds network dependant. I can send voice recordings using data through what's app or hullo mail. I wouldn't waste £6 on it.
I'm just a muppet.