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One main difference is the portability factor. Another major change would be that rotary phones have been phased out, which was a long time design feature in phones well into the late 80's. The telephone of the past couldn't take a picture, save memos, etc.
Fixed phones, connected to a public switched network:-Early phones.- Made of Bakelite (early plastic)
- Used a pulse system of dialing (Strowger gear) called Loop Disconnect (LD) with a mechanical dial.
- Carbon microphone. (crackles a lot)
- Steel diaphragm earpiece.
- High impedance bell.
- Transformer type of side tone (so you can hear yourself without howl round)
- Made of ABS plastic
- Uses tone dialling DTMF, with push buttons. (Dual Tone Multi Frequency)
- Electret condenser microphone (High quality)
- Loudspeaker earpiece
- Low impendance ring circuit, various warbles.
- Electronic audio processing.
Most exchanges still support LD dialling and DTMF together.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agomodern telephones you choose who to call and old telephones were more like walkie talkies. you had to say something an d hope the person is listening
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Who had the first telephones?
Alexander Grahembell invented and used the first telephone
Who what when were why and how was the first telephone invented?
Alexander Graham Bell invented the first telephones. Bell Canada, is known to be named after the deceased inventor of the telephone.
When was the telephone first shown to the public?
The first rotary dial telephone units were introduced to the American public in 1919. The Bell telephone began in earnest installing switching systems across the United States. While telephones that required an operator to connect the call were in use since the turn of the century, the dial phones were the first example of the modern telephone.
When were the telephones created?
1844 - Innocenzo Manzetti first mooted the idea of a "speaking telegraph" (telephone). http://en.wikipedia.org/wiki/Telephone
Who makes telephones?
I know that Alexander Graham Bell created the first telephone. I know that Alexander Graham Bell created the first telephone.
How many telephone companies were there when telephones were first made?
There were no telephone companies at the start. They came afterwards as more and more people wanted phones in their homes.
Two reasons how the telephone has had a great impact on the development of Canada?
When first created, telephones gave many jobs to women, who had to connect telephone lines and use roller blades to quicky move. Secondly, it is obvious that telephones improved communications between people.
How are old telephones are similar to new telephones?
The are many differences between old fashioned telephones and modern ones. The first phones didn't do much more than dialing a switchboard operator, they would connect you to your call. Since then, we have gone wireless, and can pretty much do anything with our phones.
Why was the telephone called an Ameche?
The actor Don Ameche was in a movie in the 1930's when he spoke on a telephone for the first time in a movie and patrons called it an Ameche as a generic term for telephones in general
Who was the creator of the telephone?
The first successful telephones were perfected by Scottish electronics engineer Alexander Graham Bell- he was awarded a U.S. patent on the telephone in 1872, and introduced the first successful 'phone three years later.
What is vcomm voicemail?
The vcomm appears only have offices in the UK and only sell telephone equipement to telephone companies to use. One of the first services that modern telephones were able to offer was the voicemail system. Call a business phone number and hear a greeting message. If you Telco has bought equipement from a company like vcomm that is what it means
What was the second telephone invented?
The first and second telephones were made at the same time becasue, unless you had the second one, you could not demonstrate that the first one worked.
