B Channel Configuration

Overview

This section describes the third step in the basic ISDN configuration sequence.

Requirement

The following is a requirement for configuring B channels:

The D channel must be assigned.

 

B Channel Configure API message

Use the B Channel Configure message to configure B channels. Use care when configuring network-specific elements for the network. Check with your carrier if you need to include network-specific Information Elements.

Trunk-provisioned calls

If placing trunk-provisioned calls (options specific to a group of B channels), the host uses the parameters (configured with this message) in the outgoing ISDN SETUP message to the network. This data is used to encode the correct Information Elements for the called and calling party IEs when using trunk-provisioned parameters for the call type, bearer capability, numbering types, and plans.

Default Configuration

The table below lists the B channel configuration entities and their defaults. Use the B Channel Configuration message to change the default configuration.

Option

Default

Network Type

AT&T Megacom

Outgoing Information Transfer Capability

Voice

Calling Number Type

National Number

Calling Number Plan ID

ISDN Numbering Plan

Calling Presentation Indicator

Presentation Allowed

Calling Screening Indicator

User Provided, Not Screened

Called Number Type

Subscriber Number

Called Number Plan ID

Unknown Numbering Plan