In 1915.
Normally, when a call is waiting, you hear a tone. Then, press the 'flash' button. If the phone does not have a 'flash' button, tap the 'hangup' button quickly (not on a cordless phone). Do the same to return to your original call.
Nope - you only get charged for the call once the phone at the other end is answered.
Use a cell phone
SMDR is an abbreviation for station message-detail recording. Regardless of their size, most telephone systems output Call Detail Records (CDR). Generally, these are created at the end of a call. But on some phone systems, the data is available during the call. This data is output from the phone system by a serial link known as the Station Message Detail Recording port (SMDR). Some of the details included in call records are: Time, Date, Call Duration, Number dialed, Caller ID information, Extension, Line/trunk location, Cost, Call completion status.
Sometimes, not very. Text messages can be intercepted by certain wireless intercepting systems, but usually that stuff is advanced so only the Government has it. However, the Public can buy Bluetooth "sniffers," but that requires registering the device on your cell phone. So, whoever wanted to intercept, would have to use the cell phone first.
Its charter granted Virginia land across the continent.
Yes, a girl can make the first phone call.
Pangea.
the first person that made that call
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You can call them. If they answer, the phone is on.
The first Americans are believed to have migrated from Asia to North America via a land bridge known as Beringia during the last Ice Age. This migration is estimated to have occurred around 15,000-30,000 years ago.
1999
1980
When you hit the 'answer' button on the incoming call, there is a message which pops up, giving you the option to either end the first call, or put the first call on hold. When you hang up on the second call, the phone automatically reconnects you with the first caller that was on hold.
Martin cooper