Polycom RealPresence 4000 Installation And Configuration Manual page 14

Field
Switch Type
21 Click Next.
The Phones dialog box opens.
22 To define dial-in number ranges, click the Add button.
23 In the Add Phone Number dialog box, define the first and the last
numbers in the phone number range.
•
A range must include at least two dial-in numbers.
•
A range cannot exceed 1000 numbers.
24 Click OK.
The new range is added to the Dial-in Phone Numbers table.
25 Optional. Repeat steps 22 to 25 to define additional dial-in ranges.
26 Enter the MCU CLI (Calling Line Identification).
With dial-in connections, the MCU CLI indicates the MCU's
number dialed by the participant. In a dial-out connection,
indicates the MCU (CLI) number as seen by the participant.
27 Click Save & Continue.
After clicking Save & Continue, you cannot use the Back button to
return to previous configuration dialog boxes.
The ISDN/PSTN Network Service is created and confirmed.
28 Click OK to continue the configuration.
The Spans dialog box opens.
29 Click the check boxes in the Attached field to attach spans (E1 or T1
PRI lines) to the network service named in the Network Service Name
field.
14
Description
Select the brand and revision level of switch
equipment installed in the service provider's central
office.
•
For T1 spans, default is AT&T 4ESS.
•
For E1 spans, default is EURO ISDN.
Note: For T1 configurations in Taiwan, Framing must
be set to ESF and Line Coding to B8ZS.