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Billion 800VGT Router
PSTN
Dial
Plan
This
section
enables
you
to
configure
“VoIP
with
PSTN
switching”
on
your
system.
You
can
define
a
range
of
dial
plans
to
select
which
calls
are
routed
over
VoIP
and
which
are
routed
over
the
PSTN
line.
Prefix
numbers
are
the
essential
key
to
distinguish
between
VoIP
and
Regular
(PSTN)
phone
calls.
If
the
actual
numbers
dialed
matches
the
prefix
number
defined
in
this
dial
plan,
the
dialed
number
will
be
routed
to
the
PSTN
to
make
a
regular
call.
Otherwise,
the
number
will
be
routed
over
the
VoIP
network.
Reminder!
In
order
to
utilize
this
feature,
you
must
have
registered
and
connected
to
your
SIP
Server
first.
Prefix:
Specify
number(s)
for
switching
to
a
PSTN
call.
Number
of
Digits:
Specify
the
total
number
of
digits
that
you
wish
to
dial
out.
Maximum
digit
number
is
15.
Action:
Specify
a
dialling
method
that
you
wish
to
use
when
making
PSTN
call(s).
Dial
with
Prefix:
The
complete
number
that
you
have
dialled
will
be
dialled
on
the
PSTN
(including
prefix)
Note:
The
actual
number
of
valid
digits
dialled
must
match
the
number
in
the
Number
of
Digits
field.
Dial
without
Prefix:
The
number
that
you
have
dialled
will
be
dialled
on
the
PSTN
after
the
prefix
has
been
removed
from
it
(excluding
prefix).
Note:
The
actual
number
of
valid
digits
dialled
must
match
the
number
in
the
Number
of
Digits
field
Dial
at
Timeout:
The
complete
number
that
you
have
dialled
will
be
dialled
on
the
PSTN
(including
prefix)
once
a
certain
time
has
elapsed
since
the
last
digit
was
dialled.
Note:
The
actual
number
of
valid
digits
dialled
must
NOT
EXCEED the
number
in
the
Number
of
Digits
field.
Dial
at
Timeout
no
prefix:
The
number
that
you
have
dialled
will
be
dialled
on
the
PSTN
after the
prefix
has
been
removed,
(excluding
the
prefix)
once
a
certain
time
has
elapsed
since
the
last digit
was
dialled.
Note:
The
actual
number
of
valid
digits
dialled
must
NOT
EXCEDE
the
number
in
the
Number
of
Digits
field
Attention
Phone
port
1
and
2
will
automatically
default
to
the
PSTN
line
when:
-
The
router
is
Powered
Down
-
Internet
Service
Fails
,
i.e.,
lost
of
WAN
IP
Address/connection
-
The
SIP
option
is
disabled.
See
the
VoIP
General
Setting
section.
-
Calls
that
are
placed
match
the
rule(s)
defined
in
the
PSTN
Dial
Plan.
-
The
SIP
service
is
not
accessible.
This
does
not
include
when
:
A
User
manually
disables
Registration.
A
User
inserts
a
wrong
authentication
username
and/or
password.
A
User
dials
a
wrong
SIP
number,
only
and
if,
the
PSTN
Auto-Fallback
function
is
not
enabled.
See
VoIP
General
Setting
/
Advanced
for
information.
106
Chapter
4:
Configuration