Kamailio v4.2.4 发布，Kamailio是一个开源的SIP服务器，原名OpenSER。此版本是个稳定版本，包括上一版本 4.2.3 的代码和文档修复。
主要包括：
ten new modules: evapi, db_mongodb, jsonrpc-s, kazoo, ndb_cassandra, ndb_mongodb, nosip, rtpengine (replacing rtpproxy-ng), tsilo, uuid
TCP-based event API controlled from configuration file
database connector for MongoDB
embedded JSON-RPC server
middle layer connector for Kazoo VoIP platform
no-sql configuration file connector for Cassandra
no-sql configuration file connector for MongoDB
ability to handle no-SIP messages via configuration file event routes
control module for RTPEngine application used for NAT traversal or encryption/decryption between plain RTP and WebRTC-SRTP
ability to add new branches to active transactions on-the-fly (e.g., as soon as a new REGISTER from callee arrives)
unique identifiers generator for usage inside configuration file
pool of generic worker processes
acc module can do asynchronous insert of records to MySQL servers
sqlops module can do asynchronous queries to MySQL servers
async can trigger immediate asynchronous execution of routing blocks
significant improvements to internal memory manager
create traffic limiting ‘pipes’ on the fly with pipelimit module
active calls tracking (dialog) can replicate local data and work with remote profiles
monitoring (via SIP keepalives) and managing active calls can use dedicated timer processes pool to cope better with heavy traffic
enhancements to remote registrations to allow reloading records from database; add, enable or disable a record at runtime via rpc commands
topology hiding can use server IP everywhere
mechanism to detect retransmissions in early phase of configuration processing without creating the heavyweight transaction structure
manage muli-part bodies: set, remove or append parts
ability to increase and track the difference of CSeq when the server is performing proxy authentication to next hop for calls
plenty of new features for IMS extensions
源代码
http://www.kamailio.org/pub/kamailio/4.2.4/src/
更新日志：
http://www.kamailio.org/pub/kamailio/4.2.4/ChangeLog
Download via GIT:
git clone git://git.kamailio.org/kamailio kamailiocd kamailiogit checkout -b 4.2 origin/4.2
二进制包：
http://www.kamailio.org/pub/kamailio/4.2.4/
模块文档：
http://www.kamailio.org/docs/modules/4.2.x/
v4.2.x 系列发行说明：
http://www.kamailio.org/w/kamailio-v4-2-0-release-notes/
更多内容请看发行说明。
软件详情：http://www.kamailio.org/w/2015/02/kamailio-v4-2-3-released/
来自:开源中国社区
