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Push Interface Overview

24 4600 Series IP Telephones Application Programmer Interface (API) Guide

Push Message Flow

This section describes the step-by-step process to send a particular Push Message to an Avaya

IP Telephone.Figure 4

illustrates this process.

Step 1 - XML File Push Message Sent

The first step of the Push process is to POST a Push Message to the telephone’s Push Agent.

The Push Message can only be sent using the HTTP POST method. The message contains an

XML file with the <Push> tag and instructions for the telephone’s Push Agent to request the

Push Content from a Trusted Push Server.

Note:

Note: For more information on creating Push Messages, see Chapter 3: Creating Push

Messages.

Step 2 – Push Agent Responds

The Push Agent sends a response back to the Push Initiator with HTTP status codes. The

response also contains an HTTP header extension called “x-Avaya-Push-Status” code. The

x-Avaya-Push-Status indicates the outcome of a push request back to the Push Initiator.

x-Avaya-Push-Status codes respond with errors such as Forbidden, Not in Push state, etc.

Note:

Note: See Chapter 3: Creating Push Messages for more information on

x-Avaya-Push-Status codes.

Step 3 – XML Message Parsing

The XML parser parses the Push Message and verifies that the Push Content URL is a Trusted

Push Server. If the URL is not a Trusted Push Server, an HTTP 403 - Forbidden error

message is sent back to the Push Initiator using Step 2 mechanisms.

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Avaya 4600 Series Nota applicativa Pagina 24