Polycom V500, Руководство администратора, Страница: 44 / 146

Administrator’s Guide for the V500 System
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3.
If you have the ISDN option, select to go to the Network Dialing
screen and configure these settings:
4.
Select to go to the Preferred Speeds screens and configure these
settings:
Setting Description
Preferred Dialing
Method Specifies the preferred method for dialing various call types. If
set to
Auto , calls use the configured Dialing Order. If set to
Manual , the system prompts the user to select the call type
from a list when placing a call.
Dialing Order Specifies how the system places calls to directory entries that
have both IP and ISDN numbers.
It also specifies how the system places calls dialed manually,
when the call type selection is either unavailable on the home
screen or set to
Auto . If a call attempt does not connect, the
system tries to place the call using the next call type in the
Dialing Order.
This setting is available only when
Preferred Dialing Method
is set to Auto .
For more information, see Configuring Dialing Order Settings
on page 3-29 .
Setting Description
Preferred Speed
for Placing Calls Determines the speeds that will be used for calls from this
system in either of these cases:
• Call Quality is set to Auto on the home screen and
Directory screen.
• The Call Quality setting is not available for users.
If the far-site system does not support the selected speed, the
system automatically negotiates a lower speed.
Note: Cable and DSL modems typically have bandwidth
restrictions for upload (transmit) and download (receive).
Therefore, if you’re making calls through a cable or DSL
modem, you need to find out what your upload and download
capabilities are in order to select the correct speed for your
system. If you don’t know, ask your ISP.
Maximum Speed
for Receiving
Calls Allows you to restrict the bandwidth used when receiving
calls. For example, if you have a DSL connection that it is
limited to 384 Kbps upload and 1.5 MB download, you should
restrict your calls to 384 Kbps or less for better call results.
If the far site attempts to call the system at a higher speed
than selected here, the call is re-negotiated at the speed
specified in this field.