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One issue he doesn't talk about is that the sender can never for sure know that the pager received the message. At one point I was interested to know if there
by supernova87a 5y ago
One issue he doesn't talk about is that the sender can never for sure know that the pager received the message.
At one point I was interested to know if there were versions of the paging technology (for some critical application?) that tried to solve this by issuing multiple redundant messages over some amount of time, and the pager ignoring the redundant ones after the 1st one had been received?
Also would be interesting to hear how the many companies "divided up" cities, etc. to create a network.
I remember there used to be some convoluted way of dialing into a pager service and keying the numbers/text that you wanted to be shown on the recipient's screen, but have long forgotten it.
- croes 5y ago"That’s it. It’s a one-way communication, there is no confirmation sending back, the pager has only the receiver and no transmitter at all." Implies the issue of not knowing if the message is received.
- markrages 5y ago> At one point I was interested to know if there were versions of the paging technology (for some critical application?) that tried to solve this by issuing multiple redundant messages over some amount of time, and the pager ignoring the redundant ones after the 1st one had been received? This is in fact how pagers work.
- walshemj 5y agoPossibly for older networks - the remining one in the UK does encrypt. I used to have a basic pager in the 80's when I was on call for BT / Dialcom
- rfdave 5y agoOne of the last gasp paging technologies was two way paging, which included a slow return channel to confirm message reception.