Talk:Telephone: Difference between revisions

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imported>Howard C. Berkowitz
imported>Howard C. Berkowitz
(VoIP vs ToIP -- much commercial VoIP runs partially, at most, in the public Internet)
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Before reading this article, I had never run into the term "telephony over IP", and I worked with digital telephony well before it.  Unless there is an authoritative term for ToIP, I recommend doing away with it and staying with VoIP, which is the term in all standards with which I am familiar. [[User:Howard C. Berkowitz|Howard C. Berkowitz]] 14:55, 25 July 2008 (CDT)
Before reading this article, I had never run into the term "telephony over IP", and I worked with digital telephony well before it.  Unless there is an authoritative term for ToIP, I recommend doing away with it and staying with VoIP, which is the term in all standards with which I am familiar. [[User:Howard C. Berkowitz|Howard C. Berkowitz]] 14:55, 25 July 2008 (CDT)
Looking in the article history, I see ToIP mentioned as differentiated from VoIP as not having to run over the public Internet, but, in practice, most commercial VoIP does not run over the same network as commercial Internet services. They share a common optical transmission infrastructure, but the VoIP channels are variously in different multiplexed subchannels, or operate in different IP [[virtual private networks]] (VPN) engineered to deliver the [[quality of service]] required for VoIP. ~VoIP may connect to a common "end office" (twisted pair) or "head end" (cable TV), but the services usually separate at that point. [[User:Howard C. Berkowitz|Howard C. Berkowitz]]

Revision as of 15:01, 25 July 2008

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 Definition:  Telecommunications device that transmits and receives sound, most commonly the human voice, by converting the sound waves to pulses of electrical current, and then retranslating the current back to sound. [d] [e]
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 Workgroup category:  Engineering [Editors asked to check categories]
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Removed these Wikipedia images:


File:Telephone-modele-W48.jpg
An old rotary telephone
File:Tphone2.jpg
A basic modern telephone
Touch-tone telephone
File:Phone numberpad.jpeg
A touch-tone telephone keypad
Copy of the original phone of Graham Bell at the Musée des Arts et Métiers in Paris
1896 Telephone (Sweden)
File:Phone handset.jpeg
A telephone handset
The Ericofon was a very futuristic handset when it was introduced in 1956.
Cordless handset
A WiFi-based VoIP phone

Telephony over IP vs. Voice over IP

Before reading this article, I had never run into the term "telephony over IP", and I worked with digital telephony well before it. Unless there is an authoritative term for ToIP, I recommend doing away with it and staying with VoIP, which is the term in all standards with which I am familiar. Howard C. Berkowitz 14:55, 25 July 2008 (CDT)

Looking in the article history, I see ToIP mentioned as differentiated from VoIP as not having to run over the public Internet, but, in practice, most commercial VoIP does not run over the same network as commercial Internet services. They share a common optical transmission infrastructure, but the VoIP channels are variously in different multiplexed subchannels, or operate in different IP virtual private networks (VPN) engineered to deliver the quality of service required for VoIP. ~VoIP may connect to a common "end office" (twisted pair) or "head end" (cable TV), but the services usually separate at that point. Howard C. Berkowitz

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