| <body> |
| This is the root of the JAIN implementation of SIP. It contains an |
| implementation of the Provider, Listener and Stack. Implementation of the |
| headers is contained in header and implementation of the parser in the |
| parser subdirectory. The SIP Protocol specific abstractions are implemented |
| in the stack subdirectory. |
| |
| <p> |
| The RI contains several additional Features that are not required by the JAIN-SIP spec |
| and that can be enabled by RI-specific properties that are specified when the SipStack |
| is created. The purpose of these additional properties is to enable the following: |
| |
| <ul> |
| <li> Message Logging features - permits the application to log messages in |
| a format that are suitable for trace viewing using the trace viewer facility. |
| <li> TCP starvation attack prevention - Limit the size and timeout for |
| tcp connections. |
| <li> UDP Flooding attack prevention -- limit the size of queues and transaction |
| table size. |
| <li> TCP message size limitation -- limit the size of TCP messages to prevent |
| TCP flooding attacks. |
| <li> Connection caching and reuse for TCP connections -- reduce latency by re-using |
| TCP connections on client and server transactions. |
| <li> Address resolution -- resolve addresses that are not direct DNS lookups or IP addresses |
| using a custom address resolver. |
| <li> Network Layer -- allows your application code to have direct access to the |
| Sockets that are used by the stack (use this feature with caution!). |
| </li> |
| </ul> |
| |
| See the javadoc for gov.nist.javax.sip.SipStackImpl for a detailed explanation of |
| these features. |
| |
| <p> |
| The interfaces that are suffixed with Ext in this package will not be altered and will |
| be included in the next specification revision. These are provided here for those who |
| wish to use these extensions and do not want to wait until the next spec revision |
| becomes available. |
| |
| </body> |
| |
| </a> |
