WTA is a collection of telephony specific extensions for call and feature control mechanisms, merging data networks and voice networks.
It is an Extension of basic WAE application model with following features
–network model for interaction
- client requests to server
- event signaling: server can push content to the client
– event handling
- table indicating how to react on certain events from the network
- client may now be able to handle unknown events
–telephony functions
- some application on the client may access telephony functions
WTAI (Wireless Telephony Application Interface) includes:
–Call control
–Network text messaging
–Phone book interface
–Event processing
Security model: segregation
–Separate WTA browser
–Separate WTA port
WTA logical architecture
The client is connected via a mobile network with a WTA server, other telephone networks and a WAP gateway.
A WML user agent running on the client is not shown here.
The client may have voice and data connections over the network.
Other origin servers can be connected via the WAP gateway.
Easy Notes 