Push Access Protocol (or PAP) is a protocol defined in WAP-164 of the Wireless Application Protocol (WAP) suite from the Open Mobile Alliance. PAP is used for communicating with the Push Proxy Gateway, which is usually part of a WAP Gateway.
PAP is intended for use in delivering content from Push Initiators to Push Proxy Gateways for subsequent delivery to narrow band devices, including mobile phones and pagers. Example messages include news, stock quotes, weather, traffic reports, and notification of events such as email arrival. With Push functionality, users are able to receive information without having to request it. In many cases it is important for the user to get the information as soon as it is available.
The Push Access Protocol is not intended for use over the air.
PAP is designed to be independent of the underlying transport protocol. PAP specifies the following possible operations between the Push Initiator and the Push Proxy Gateway:
- Submit a Push
- Cancel a Push
- Query for status of a Push
- Query for wireless device capabilities
- Result notification
The interaction between the Push Initiators and the Push Proxy Gateways is in the form of XML messages.
Read more about Push Access Protocol: Addressing, Message Format
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