Apps
115
Optional
calling
services
If
available
with
your
service
plan,
the
following
calling
services
are
supported.
Place
a
multi-party
call
If
your
service
plan
supports
this
feature,
you
can
make
another
call
while
a
call
is
in
progress.
1.
From
the
active
call,
tap
Add
call
to
dial
the
second
call.
2.
Dial
the
new
number
and
tap
Call
.
When
the
call
is
answered:
•
Tap
Swap
to
switch
between
the
two
calls.
•
Tap
Merge
to
hear
both
callers
at
once
(multi-conferencing).
TTY
mode
A
teletypewriter
(TTY)
is
a
telecommunications
device
that
allows
people
who
are
deaf,
hard
of
hearing,
or
who
have
speech
or
language
disabilities
to
communicate
by
telephone.
1.
From
Phone
,
tap
More
options
>
Settings
.
2.
Tap
Other
call
settings
>
TTY
mode
.
3.
Tap
TTY
Off
,
TTY
Full
,
TTY
HCO
,
or
TTY
VCO
.