No theres no way to block the number. you can call from an unlisted number and it comes up number unknown and the automatic recording tracing follows the call through a network of phone lines and towers. with in three minutes they have your location. Mosat times when I was working the lines we would see on the caller ID caller unknown and pick up and gve a standard "please hold all vollunteers are on calls your call will be answered by the next available person." then wait a minute and pick up and go into the crisis centers information - Hi this is (my name) and this number (stating both numbers - local and the 800 number). We have all kinds of services here so in order for me to better help you I need to ask some questions. (by this time another minute has gone by) Have you called here before? Then keep asking questions based on their answers until the recording locater puts on the computer screen the callers location.

All phone booths have a specific first three numbers. those three numbers tells the location of that phone for example (not true numbers) 123-4567, 123-5678, 123-4321 they are all put with in the same city and block radius from each other. a hot line only needs to keep you on line for one minute which is more than long enough for the worker to type into a reverse (by phone number not name) computer phone directory. most times they do this before even answering the call by clicking the keys on the computer that will automatically do that for them.

So in order for you to go to a pay phone and hang up before they catch you in the act you need to put your money in let it ring once and hang up before they answer the call. And if you are going to do that why call to begin with right. People call because they want help and part of that help is sometimes wanting someone to stop the person. those that don't want to be stopped dont usually make the calls. they set things up so that they are dead before the person even finds the suicide note and so on.

By the way theres such a thing as Luds. even if you hang up the phone there is still a log to the fact that a call was made. maybe not the person who made the call but a time and number called from pay phones are kept on file for a certain amount of time. the police have access to phone company Luds.

telephone companies automatically list the incoming and out going calls from each phone they service. you can see an example of how they use the luds by looking at your phone bill.

See the itemized phone numbers you have called and the time that the call was made and where to?

You didn't call an operator every time you placed those calls. The phone companies computer automatically kept track and saved this information for 30 days.

This is how they know the difference between those local and long distance numbers you call and they print the long distance ones on the bills you recieve.

Pay phones work the same way the phone company keeps luds on every incoming and outgoing calls for a certain period of time.

If someone calls freom a pay phone and just says - I have a gun and am going to shoot myself and hang up. Pay phone numbers are not unlisted. so they automatically comeup on emergency services, click on one button and phone copmpany directory tells location and within a couple minutes that local emergency services (police) have been dispatched to the pay phones location. Then they get a discription of the last person who used that phone from any people hanging around. If the pay phone is located near or inside a business or store the odds are good to great that the person is on that businesses survallance vidio for shop lifters and so on.

Most if not all emergency services and hotlines record all calls both incomming and outgoing. that way the recordings can be used in prosecution of crank callers and when people call while they care being burgularized, abused and whatever other crimes that go on including suicide.

Here in the USA being a danger to yourself and or others is a crime so even suicide hotlines are expected to comply with law enforcement when they need access to proof of if a caller called the lines and what went on during the call. Especially if for example they arrest and transport a bridge jumper to the local ER and they claim yea I called that number but the person on line told me to go ahead and jump or whatever other claims they have against the hotline in which puts the hotline in the hotseat with the law.

the computer age is great we now have the world wide web ...and along with that comes the abilities of locating people so much easier when they are in crisis situations.