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Creating Push Messages

56 4600 Series IP Telephones Application Programmer Interface (API) Guide

Using the <postfield> Tag

The IP telephone’s Web browser interface supports the <postfield> tag. The <postfield> tag

allows an application to set a name/value pair that can be sent to the source of the request. The

name is set by the name attribute and must be a valid WML variable name. The value is set by

the value attribute. A <go> element can contain one or more <postfield> tags.

Note:

Note: For more information on the <postfield> tag, see Chapter 7: Web Browser for

4610SW, 4620/4620SW, 4621SW, and 4622SW IP Telephones.

Note:

Note: Postfield tags must be sent if HTTP POST method is used.

Push Agent

Once a Push Message is received from the Push Initiator, the Push Agent first parses the XML

file for validation and tag mismatch errors. The Push Agent verifies that the URL in the <go> tag

is part of the Trusted Push Servers. The Push Agent then requests the Push Content from the

Trusted Push Server using the URL.

Note:

Note: For more information on Trusted Push Servers, see Security in Chapter 4: Push

Administration.

Table 4: Description of Elements/Attributes used in the Subscribe Push XML Message:

Element or Tag Attribute Value Description

<Push> Each Push Message must contain

one valid root <Push> tag.

type subscribe For the Subscribe push type, set type

to subscribe.

<go href=…/><Url> A fully qualified URL - to an XML file

with <Response> and the associated

embedded <Subscribe> tag.

method get|post HTTP get or post methods.

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Avaya 4600 Series Anwendungshinweis Seite 56