【SIPの仕組み】SIP：VoIPなどで使われるテキストベースのセッション管理プロトコル VoIP普及の勢いは増すばかりだが、いっぽうで相互接続・運用のために必要となるプロトコルのほうは、いまだ決定的といえるほど収束していないのが現状だ。 これまで ...

This newly revised edition of the ground-breaking Artech House bestseller, SIP: Understanding the Session Initiation Protocol gives you a thorough and up-to-date understanding of this revolutionary ...

昨今は登場したばかりのiPhone 3G Sの話題でもちきりだが、オープンソースの携帯電話向けのプラットフォーム「Android」に注目するソフトウェア会社も多い。今回はIP電話の基盤プロトコルであるSIP（Session Initiation Protocol）の開発に強みを持つ、ソフト ...

Christiana Jolaoso-Oloyede writes for media publications, B2B brands and nonprofits. Using her research, analytical and writing skills from her training as a lawyer, she focuses on garnering accurate ...

What's VoIP's Big Security Problem? SIP Session Initiation Protocol (SIP) is a must for voice over IP (VoIP) communication. But by itself, SIP is insecure and easily hacked. Here's what you need to ...

Session Initiation Protocol (SIP), with its promise of serving as a single global signaling standard, has mushroomed in importance for networking in the past year. But it may be years from adoption ...