Polycom VIEWSTATION EX, Руководство пользователя

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ViewStation EX User Guide
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is associated with a specific LAN device. Incoming callers are
prompted to enter the H.323 extension to access a specific LAN
device behind the Gateway. This number may be assigned by
the telephone company or by your network administrator.
❑
Use Gatekeeper. This option can be set to Off, Specify, or Auto.
• Off —If you do not want to access a Gatekeeper, select this
option.
• Specify —To specify a Gatekeeper, select this option and
enter the Gatekeeper’s IP address in the Gatekeeper IP
Address
field. This information is available from your
network administrator.
• Auto —To have your system automatically find an available
Gatekeeper, select the Auto option.
❑
Gatekeeper IP Address —This address is provided by your
network administrator.
❑
Preferred alias —This is a valid number that outside systems
can use to reach your system. Your preferred alias is generally
the same number as the H.323 extension.
❑
Outbound Call Route —The Outbound Call Route via ISDN or
Gateway only affects how a system dials an ISDN (H.320) call.
All IP (H.323) calls are not affected by this option. Currently, a
system can dial an ISDN call through ISDN or Gateway as long
as it has native ISDN capability and the system is registered
with a Gatekeeper. Select the appropriate option depending on
your network configuration:
• Gateway : Select this option if your outbound call needs to
be handled by a Gateway. This information can be obtained
from your network administrator.
• ISDN : Select this option if your system is connected to an
ISDN line. ISDN is the default. When you dial through
ISDN, the ISDN call is made by using ISDN natively. All the
prefix or suffix on the Gateway screen are irrelevant.
When you dial through Gateway, the ISDN call is made by
using Gateway, not ISDN natively. If there is prefix or suffix
on the Gateway screen for Gateway calls, it should be
included
when a call is made.