TANDBERG 770 Manuale Utente
TANDBERG Videoconferencing System
21
Getting started
Selecting / setting default quality (bandwidth)
T
YPE
OF
CALLS
Auto
384kbps on ISDN/768kbps on IP
Max
384kbps on ISDN/1536kbps on IP
1472
1472 kbps (IP only)
1152
1152 kbps (IP only)
768
768 kbps (IP only)
512
512 kbps (IP only)
384
384 kbps (6B)
320
320 kbps (5B)
256
256 kbps (4B)
192
192 kbps (3B)
128
128 kbps (2B)(Bonding/H.221)
64
64 kbps (1B)(H.221)
Teleph
Telephone Call
S
OME
SYSTEMS
AND
SOFTWARE
VERSIONS
AND
NETWORKS
DO
NOT
SUPPORT
ALL
BANDWIDTH
SELECTIONS
.
The default call quality setting ‘Auto’ will be used if no specific
quality is selected.
quality is selected.
To select quality (bandwidth):
• Press the ‘Quality’ Quick Key when you are in the dial menu. The
Quality menu will then be displayed:
Quality menu will then be displayed:
NOTE
TIP
• Choose the preferred quality by selecting the desired call rate in the ‘Call Rate’ field.
• You may also press the ‘Set as Default’ Quick Key in order to make the selected bandwidth the default
bandwidth for subsequent calls.
• Set ‘Set Restrict (56k)’ to ‘On’ to make a restricted call. An indicator ‘(56k)’ will be shown behind the number.
R
ESTRICTED
CALL
A
RESTRICTED
CALL
IS
A
CALL
TO
A
56
KBPS
NETWORK
. B
Y
DEFAULT
THE
SYSTEM
WILL
DIAL
AN
UNRESTRICTED
CALL
(
A
CALL
TO
A
64
KBPS
NETWORK
)
AND
DOWNSPEED
TO
56
KBPS
IF
NECESSARY
. T
O
FORCE
A
RESTRICTED
CALL
,
SELECT
‘S
ET
R
ESTRICT
(56
K
)’
TIP
D
IALING
TWO
NUMBERS
S
OMETIMES
(
ESPECIALLY
WHEN
CALLING
TO
AND
WITHIN
N
ORTH
A
MERICA
)
IT
IS
NECESSARY
TO
DIAL
BOTH
ISDN
NUMBERS
WHEN
MAKING
A
VIDEO
CALL
USING
2
X
64
KBPS
OR
2
X
56
KBPS
. S
ELECT
‘128’
IN
THE
Q
UALITY
MENU
. W
HEN
YOU
RETURN
TO
THE
D
IAL
M
ENU
,
BOTH
‘N
UMBER
:’
AND
‘2
ND
:’
ARE
DISPLAYED
. E
NTER
THE
SECOND
NUMBER
.