Polycom DOC2230A manual Define the Spans and Phones parameters as follows

MGC-50/MGC-100 Getting Started Guide

14. Define the Spans and Phones parameters as follows:

Table 3-4: Spans and Phone Dialog Box Options

Field	Description
Span	Displays the existing definitions of circuit
	identification numbers and circuit orders.
	Click the plus	button to define the new spans.
Dial In Phone Num	Lists the phone numbers available for dialing in, as
	allocated to the MCU by the service provider.
	Click the plus	button to define a dial-in phone
	range.
MCU Number	Type a number to identify the MCU when calling the
	participants in dial-out conferences. This number is
	part of the dial-in numbers allocated to the MCU by
	the service provider, but it cannot be part of the
	dial-in phone range.
	The MCU Number is also used for dial-in, in
	conferences when the Meet Me Per MCU option is
	selected as the connection type for participants.
Gateway Range	Displays the dial-in numbers allocated to Gateway
	calls. Click the plus		button to allocate dial-in
	ranges to the gateway. The Gateway Phone
	Numbers dialog box opens.

To define the NFAS parameters, see the MGC Administrator’s Guide,

Chapter 3.

Defining Spans

15.To assign circuit identification numbers and orders:

a.In the Spans pane of the Span and Phone dialog box, click the Plus

button.

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