PPL Component Addressing

This section lists the PPL Components and the associated AIBs used for PPL messages.

The following are guidelines for the information in the tables later in this section.

• The PPL Transmit Signal Configure message (0xD2) is applies to the E1 and T1 protocols.

The tables later in this section show the AIBs used to address the various PPL components in these PPL-related API messages listed below:

The PPL Transmit Signal Configure message is not included in the tables because it uses the Channel address AIB only.

For span/channel addressed state machines, the following messages can use either a single entity or range address method:

For span/channel addressed state machines, the following messages use a single entity address method only:

The PPL Event Indication and PPL Event Request messages are used to send and receive additional call processing data about the call.

This message is initiated by the host, and sends an external event directly to the specified PPL component.

This message enables the PPL component on the Excel platform to report external events to the host application.

The PPL Event Request and PPL Event Indication messages must include the PPL component and event. They can include optional data in an ICB.

In this section:

E1/T1

Layer 4/Layer 5 Call Control PPL Information

A digital communications link - voice, data, and video at a 2.048 Mbps rate; 30B/2D or 31B/1D (ISDN); non-North American version of T1.

Digital communications link - voice, data, and video at a 1.544 Mbps rate (24 64 Kbps channels)

A condition that, when met, drives a state machine from one state to another. A condition that drives a Component out of its current state by invoking an associated primitive.

In PPL, a condition that, when met, drives a state machine (PPL Component) from one state to another, by invoking an associated Primitive. In PPL files, an Event is marked by an arrow and text.

Session-Initiation Protocol. A signaling protocol used for establishing sessions in an IP network. A session could be a simple, two-way telephone call, or it could be a collaborative multi-media conference session.

ITU-T standard defines a set of call control, channel setup, and codec specifications for transmitting real-time voice and video over networks that do not offer guaranteed service or quality of service.