This book helps readers to see SIP in a broad communications context, assess what SIP can do and deliver, evaluate SIP's fit with other standards and systems, and plan new SIP-enabled services. The Session Initiation Protocol (SIP) is the signalling protocol that will deliver IP multimedia services [...]
Third edition of this best-selling guide to IMS: fully revised, and updated with brand new material The IMS (IP Multimedia Subsystem) is the technology that merges the Internet with the cellular world. It makes Internet technologies such as the web, email, instant messaging, presence, and videoconf[...]