will be sent to these push servers as well as illustrated in fig4 push servers 52 and 54 are registered within server identifier field 308 f associated with the wireless device identifier for wireless data device 10 at pdsn 28 after push servers 52 and 54 receive data active messages 60 a and 60 b respectively user data 62 a and 62 b and server data 64 a and 64 b can be exchanged between the wireless data device 10 and the push servers 52 and 54 respectively in cdma2000 network data active notification 68 may be associated with a power up registration likewise when wireless data device 10 powers down pdsn 28 is notified via bsc 24 using a data inactive notification 72 pdsn 28 then sends out data inactive message 66 a and 66 b to push servers 52 54 in cdma2000 network this data inactive notification 72 may be associated with power down registration based on the above by using the method of fig8 wireless data device 10 does not have to send out multiple data active messages and data inactive messages thereby increasing its battery life and reducing over the air traffic as with fig7 the dashed lines flowing over push server 52 indicate that the.