Emergency alert to be tested on US cellphones, TV and radio on Wednesday

You're right. The movies are usually aobut some debonair man in his expensive apartment, or a glamorous woman in her expensive apartment.

But once they have the automated exchange for the use of anyone, then it wouldn't take long for everyone to be be connected to it. It would only require installing the phones and connecting the wires at the exchanges.

for different reasons, I would guess a year or two for almost everyone to have it, by 1942. Compared to 1952 or so when we got dial phones.

I never saw one up close, but I've certainly heard from the beginning of the T-ball jotter. T stands for textured, right? After they make the balls the normal way, they have someone hand-drill up to 20 holes in each ball. That makes them not skip.

Well of course. The people who do the drilling get a livable wage these days, and it 20 holes take time.

Writes first time every time.

You realize that when the world's ink supply is used up, we'll have to stop writing and printing. Everything will be verbal.

BTW I stopped using black ink because at least in an original, one can tell that blue ink is not photocopy.

"Carlos E. R." <robin snipped-for-privacy@es.invalid wrote

Thanks for adding that value as I had never heard of SMS-CB before. Much appreciated...

Unlike Short Message Service-Point to Point (SMS-PP), Cell Broadcast is a one-to-many geo-targeted and geo-fenced messaging service.

Jim Joyce snipped-for-privacy@none.invalid wrote

Carlos kindly posted this SMS-PP vs SMS-CB distinction in this thread.

Cell Broadcast (CB) is a method of sending messages to multiple mobile telephone users in a defined area at the same time. It is defined by the ETSI's GSM committee and 3GPP and is part of the 2G, 3G, 4G LTE (telecommunication) and 5G standards.[1] It is also known as Short Message Service-Cell Broadcast (SMS-CB) or CB SMS.[2][3]

Unlike Short Message Service-Point to Point (SMS-PP), Cell Broadcast is a one-to-many geo-targeted and geo-fenced messaging service.

Phones were property of Ma Bell too. The one at my grandmother's house weighed about 5 pounds and had a short cord to a big box on the wall. Had to be 20 years old, one of the firsts. When we moved in with her

They never asked afaicr what happened in school today. They just assumed I'd learn what I was supposed to. I don't know if they thought I'd learned to read or not but even if they did, it didn't occur to them I would put it to use. I knew what the phone book was. I'd probably seen my mother use it but if not, just look inside, it has a bunch of names, addreses, and numbers, and it says telephone company on the outside, and it's next to the phone. Isn't it obvious!

Are you sure your mother didn't arrange that?

That's why I was asking ^^

Right, wars force rapid progress.

Me neither!

I am confused about this.

"A Cell Broadcast message is an unconfirmed push service, meaning that the originators of the messages do not know who has received the message, allowing for services based on anonymity"

"Each repeated CB message will have the same message identifier (indicating the source of the message), and the same serial number. Using this information, the mobile telephone is able to identify and ignore broadcasts of already received messages. "

This seems to imply that SMS-CB acts more like a radio station, sending out a broadcast that your phone ignores after logging it. So, how does the network know who got it?

They don't. They know which towers were broadcasting, and they know the start and stop times for the broadcasts, but they don't know who got it because there is no acknowledgement. The 'OK' button that someone mentioned is a local ack, not a network ack.

Oh, that makes more sense.

================================================================

========

It doesn't.

IIRC, it was 30.

Maybe you realize the word 'verbal' means "with words", whether written or spoken. It appears the word you want is "oral".

We have a good supply of used electrons.

I don't doubt that duck and cover can be an enormous help. I was just saying we never heard of it in my school between Pittsburgh and Youngstown. 50 mles from Ptsbg, 30 from Youngstown, we would only have been a target if some missile was off course or far off course.

But the same would have been true for air raids, even in the middle of wwii. I assume the air raid drills were a holdover from the war, and frankly I don't remember them past first grade. First grade was in a basement classroom, the only classroom in the basement. But I don't remember standing against the walls on the first floor in grades 2-6 and I would think I would.