You are here: CSP Developer’s Guide: Common Channel Signaling > 8 ISDN > 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 |