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Index Service Articles |
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About VoIP
Functionality
VoIP can facilitate tasks that
may be more difficult to achieve using traditional networks:
Ability to transmit more than one telephone call
down the same broadband-connected telephone line. This can make VoIP a simple way to add an extra telephone line to a home or
office.
Incoming phone calls can be automatically routed
to your VoIP phone, regardless of where you are connected to the
network. Take your VoIP phone with you on a trip, and wherever
you connect to the Internet, you can receive incoming calls.
Many VoIP packages include PSTN features that
most telcos (telecommunication companies) normally charge extra
for, or may be unavailable from your local telco,such as 3-way
calling, call forwarding, automatic redial, and caller ID.
VoIP can be secure by using existing off the shelf
protocols as Secure Real-time Transport Protocol. Most of the
difficulties of creating a secure phone over traditional phone
lines, like digitizing and digital transmission are already in
place with VoIP. It is only necessary to encrypt and authenticate
the existing data stream.
VoIP is location independent, only an internet
connection is needed to get a connection to a VoIP provider; for
instance call center agents using VoIP phones can work from anywhere
with a sufficiently fast and stable Internet connection.
VoIP phones can integrate with other services
available over the Internet, including video conversation, message
or data file exchange in parallel with the conversation, audio
conferencing, managing address books and passing information about
whether others (e.g. friends or colleagues) are available online
to interested parties.
Ability to transmit wideband speech which can
significantly improve the quality of speech and music.
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