Primary Rate Interface (PRI) and T1 Feature

Description

PRI Call Processing

The PRI Call Processing (Non-Tandem Only) diagram shows the order of call processing for both incoming and outgoing calls on PRI facilities connected to the public switched telephone network; the section of the figure within the box applies specifically to call processing on a system with PRI. An explanation of incoming and outgoing call processing follows.

Topics

Description

	Called Party Nunber (CdPN)
	Calling Party Number (CPN)
	Lines / Trunks
	PRI
	T1
	DS1 Facility Options
	Type of Service
	Framing Format
	Line Coding
	Channel Service Unit
	Line Compensation
	Signaling Mode
	Tandem PRI Trunks
	Tandem PRI Trunk Programming
	PRI Programnming Options
	PRI Programnming Options - PRI Telephone Number
	PRI Programnming Options - Network Services Supported
	PRI Programnming Options - Copy Telephone Number to Send
	PRI Programnming Options - Telephone Number to Send
	PRI Programnming Options - Test Telephone Number
	PRI Programnming Options - Timers and Counters
	PRI Programnming Options - Terminal Equipment Identifier (TEI)
	PRI Call Processing
	Incoming Calls
	Outgoing Calls
	Network Selection Table
	Call-by-Call Services Table
	Station Identification - Automatic Number Identification
	T1 Programming Options
	T1 Programming Options - T1 Tie Trunk Connections
	T1 Programming Options - T1 Routing by Dial Plan
	System-wide Programming Options - Clock Synchronization
	System-wide Programming Options - Clock Switching

At a Glance

Considerations & Constraints

	Incoming Calls
	Outgoing Calls

System Programming

Mode Differences

Feature Interactions