#### Using the <postfield> Tag

The 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: For more information on the <postfield> tag, see Chapter 7: Web Browser for 9620 and 9630 IP Telephones.

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

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.