Polycom 1 - Manual (Page 41)

Networks
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Configuring Dialing Order Settings
If the call type on the home screen is set to a specific call type, the system does
not attempt to place the call using a different call type, even if other types are
listed in Video Dialing Order or Audio Dialing Order.
You can configure the Polycom HDX system so that users can choose to place
IP-to-ISDN or ISDN-to-IP calls through a gateway.
To allow users to place an IP-to-ISDN call through a gateway:
1. Make sure the system is registered with a gatekeeper.
2. Go to System > Admin Settings > Network > Call Preference and enable
ISDN Gateway.
3. If you want to allow users to place IP-to-ISDN calls through a gateway
when calling from the directory, do one of the following:
— On the Network Dialing screen, set Preferred Dialing Method to
Auto and select ISDN Gateway as the first choice under Video
Dialing Order. With this configuration, calls placed from the
directory will be placed through a gateway first if an ISDN number
exists.
— On the Network Dialing screen, set Preferred Dialing Method to
Manual. With this configuration, users can select ISDN Gateway
from the list of call types that appears when placing a call from the
directory.
To allow users to place an ISDN-to-IP call through a gateway:
1. Go to System > Admin Settings > Network > Call Preference and enable
IP Gateway.
2. If you want to allow users to place ISDN-to-IP calls through a gateway
when calling from the directory, do one of the following:
— On the Network Dialing screen, set Preferred Dialing Method to
Auto and select IP Gateway as the first choice under Video Dialing
Order. With this configuration, calls placed from the directory will be
placed through a gateway first if an IP number exists.
— On the Network Dialing screen, set Preferred Dialing Method to
Manual. With this configuration, users can select IP Gateway from
the list of call types that appears when placing a call from the
directory.