Defining ISDN/PSTN Network Services

Span Definition

Field

Description

 

 

Side

Select one of the following options:

 

User side (default)

 

Network side

 

Symmetric side

 

Note: If the PBX is configured on the network side, then the Collaboration

 

Server unit must be configured as the user side, and vice versa, or both must be

 

configured symmetrically.

 

 

Line Coding

Select the PRI line coding method from the list.

 

For T1 spans, default is B8ZS.

 

For E1 spans, default is HDB3.

 

 

Switch Type

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.

8Click Next.

The Phones dialog is displayed.

9To define dial-in number ranges click the Add button.

10The Add Phone Number dialog box opens.

Polycom®, Inc.

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Polycom 1500/1800/2000/4000 manual Configured symmetrically