Push Proxy Gateway

The TYPE is almost always MSISDN as the Push Initiator (PI) will not typically have the Mobile Station's IP address - which is generally dynamic.

This mechanism should allow for queuing in the event of an SMS infrastructure outage, and also provide for message throttling.

In Connection Oriented pushes (where the device supports it), an SMSC BIND is not required if the gateway is aware of the handsets IP Address.

Connection Oriented Push is used less frequently than Connectionless Push for several reasons including: Many other attributes exist and are detailed in the specifications at the Open Mobile Alliance and other sites.

PPG vendors include Nokia Siemens Networks, Ericsson, Gemini Mobile Technologies, Openwave, Acision, Huawei, Azetti, Alcatel,WIT Software, ZTE, and open source Kannel.