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Welcome
to No.1
Broadband
Phone
Company
Voice
over
Internet
Protocol,
also
called
VoIP, IP
Telephony,
Internet
telephony,
Broadband
telephony,
Broadband
Phone
and
Voice
over
Broadband
is the
routing
of voice
conversations
over the
Internet
or
through
any
other
IP-based
network.
Companies
providing
VoIP
service
are
commonly
referred
to as
providers,
and
protocols
which
are used
to carry
voice
signals
over the
IP
network
are
commonly
referred
to as
Voice
over IP
or VoIP
protocols.
They may
be
viewed
as
commercial
realizations
of the
experimental
Network
Voice
Protocol
(1973)
invented
for the
ARPANET
providers.
Some
cost
savings
are due
to
utilizing
a single
network
- see
attached
image[1]
- to
carry
voice
and
data,
especially
where
users
have
existing
underutilized
network
capacity
that can
carry
VoIP at
no
additional
cost.
VoIP to
VoIP
phone
calls
are
sometimes
free,
while
VoIP to
PSTN may
have a
cost
that's
borne by
the VoIP
user.
There
are two
types of
PSTN to
VoIP
services:
DID
(Direct
Inward
Dialing)
and
access
numbers.
DID will
connect
the
caller
directly
to the
VoIP
user
while
access
numbers
require
the
caller
to input
the
extension
number
of the
VoIP
user.
Access
numbers
are
usually
charged
as a
local
call to
the
caller
and free
to the
VoIP
user
while
DID
usually
has a
monthly
fee.[2]
There
are also
DIDs
that are
free to
the VoIP
user but
chargeable
to the
caller.
Functionality
VoIP can
facilitate
tasks
that may
be more
difficult
to
achieve
using
traditional
networks:
*
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.
* Free
phone
numbers
for use
with
VoIP are
available
in the
USA, UK
and
other
countries
from
organizations
such as
VoIP
User.
* Call
center
agents
using
VoIP
phones
can work
from
anywhere
with a
sufficiently
fast and
stable
Internet
connection.
* 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.
[edit]
Mobility
VoIP
allows
users to
travel
anywhere
in the
world
and
still
make and
receive
phone
calls:
*
Subscribers
of
phone-line
replacement
services
can make
and
receive
local
phone
calls
regardless
of their
location.
For
example,
if a
user has
a New
York
City
phone
number
and is
traveling
in
Europe
and
someone
calls
the
phone
number,
it will
ring in
Europe.
Conversely,
if a
call is
made
from
Europe
to New
York
City, it
will be
treated
as a
local
call. Of
course,
there
must be
a
connection
to the
Internet
e.g.
WiFi to
make all
of this
possible.
* Users
of
Instant
Messenger
based
VoIP
services
can also
travel
anywhere
in the
world
and make
and
receive
phone
calls.
* 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.
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