1. SIP handbook : services, technologies, and security of Session Initiation Protocol /: services, technologies, and security of Session Initiation Protocol. (©2009) Other Names: Ahson, Syed; Ilyas, Mohammad, 1953- Record Type: Book Extent: 1 online resource (xvii, 614 pages), illustrations View Content: Available online (eLD content is only available in our Reading Rooms) ↗