10
Push functionality evaluation (2/2)
zWe developed an e-mail application prototype by using the WAP push function. zProtocol conversion (SMTP to WSP) is executed at the WAP gateway, and e-mail messages are pushed to the client immediately.
E-mail
application
SMTP
Push
application
SMTP
SMTP
WSP
Push
browser
WSP
WAP
Client
WAP
Gateway
E-mail
sender
WAP confirmed/unconfirmed push