Busy
Detection
is
enabled.
z
Input
Volume
:
The
volume
of
the
incoming
calls
from
FXO
channel/channels.
z
Output
Volume
:
The
volume
of
the
outgoing
calls
from
FXO
channel/channels.
z
Call
Progress
:
If
enabled,
call
progress
attempts
to
determine
answer,
busy,
and
ringing
on
phone
lines.
This
feature
is
HIGHLY
EXPERIMENTAL
and
can
easily
detect
false
answers
and
therefore
can
prove
unreliable.
z
Progress
Zone
:
Progress
zone
also
affects
the
pattern
used
for
busy
detection,
only
effective
when
Call
Progress
in
turned
on.
z
Busy
Pattern
:
If
busydetection
is
enabled,
it
is
also
possible
to
specify
the
cadence
of
your
busy
signal.
z
Language
:
You
can
choose
adesired
language
of
the
system
voice
prompts
to
play
to
the
incoming
calls
from
this
trunk.
For
example,
if
the
call
is
not
answered
or
the
user
is
busy
the
IPPBX
system
will
notify
the
caller
to
leave
a
voice
message
in
the
language
you
set.
z
Answer
on
Polarity
Switch
:
When
enabled,
FXO
(FXS
signaled)
ports
watch
for
a
polarity
reversal
to
mark
when
an
outgoing
call
is
answered
by
the
remote
party.
z
Hangup
on
Polarity
Switch
:
In
certain
countries,
a
polarity
reversal
is
used
to
signal
the
disconnection
of
a
phone
line.
If
the
“hanguponpolarityswitch”
option
is
selected,
the
call
will
be
considered
"hung
up"
on
a
polarity
reversal.
When
creating
a
FXO
trunk,
if
you
are
not
competent
with
the
advanced
options
then
please
do
not
configure
or
change
the
default
values.
3.2
Outbound
Routes
Outbound
Routes
allow
you
to
define
a
set
of
dial
rules
that
tell
yourCooVox
IPPBX
which
Trunks
(phone
lines)
to
use
when
people
dial
external
telephone
numbers.
A
simple
installation
will
direct
CooVox
IPPBX
to
send
all
calls
to
a
single
trunk.
However,
a
complex
setup
could
have
for
example
an
outbound
route
for
emergency
calls,
another
outbound
route
for
local
calls,
another
for
long
distance
calls,
and
perhaps
even
another
for
international
calls.
With
all
of
the
above
possibilities,
you
may
have
to
configure
several
trunks
onyourCooVox
IPPBX
system
and
therefore
you
will
need
to
configure
several
dial
rules
and
maybe
also
several
dial
plans.
3.2.1
Dial
Rules
Navigate
to
web
menu
Basic
‐
>Outbound
Routes
‐
>DialRules
.
