Polycom Audio and Video manual

	Chapter 3 - Configuring Network Use

Setting	Description

Outbound Call	If your system uses a gatekeeper, you can specify whether
Route	outbound ISDN calls are routed through an IP-to-ISDN gateway or
	through an ISDN line directly connected to the V500 system.

Gatekeeper IP	If you chose to use an automatically selected gatekeeper, this field
Address	automatically displays the gatekeeper’s IP address.
	If you chose to specify a gatekeeper, enter the IP address of the
	gatekeeper here.

Alternate	If your H.323 network infrastructure has been configured to use an
Gatekeeper	alternate gatekeeper when the primary gatekeeper is not
	available, the alternate gatekeeper is displayed in this field.
	Alternate gatekeeper support is configured on the primary
	gatekeeper, and the V500 is notified of this configuration when it
	registers to the gatekeeper on startup.

4.If you have a gateway, select and configure these settings:

Setting	Description

Country Code	Enter the country code for the system’s location.

Area Code	Enter the area or city code for the system’s location.

Number	Enter the gateway’s number.

H.323 Extension	You can place point-to-point calls using the extension if both
(E.164)	systems are registered with a gatekeeper.
	The default H.323 Extension is based on the system serial
	number, but you can change it. Your dial plan may define the
	extensions you can use.

Gateway Number	Select the number type users must enter to call this system:
Type	• Direct Inward Dial (DID) — Users enter an internal extension

	to call this system directly.
	Note: If you choose this option, you must also register the
	number with the gatekeeper as an E.164 alias.
	• Number + Extension — Users enter the gateway number and
	the system’s extension to call this system.

Number of Digits in	Enter the number of digits in the DID number.
DID Number	The national or regional dialing plan for your location determines

	the standard number of digits. For instance, the US standard is 7
	digits.

Number of Digits in	If you selected Number + Extension, you must enter the number
Extension	of digits in the extension.
	Your organization’s dial plan determines this number.

5.Select and enter a prefix or suffix for each bandwidth you want to allow for gateway calls.

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