Signaling
Esser Katalog 2013 Voice Evacuation
Hipath 1120 V7 0 - datasheet_2
IOCOM Visimeet tm : Enterprise Videoconferencing and Collaboration Software July 2012.
Internet, Part 2 1) Session Initiating Protocol (SIP) 2) Quality of Service (QoS) support 3) Mobility aspects (terminal vs. personal mobility) 4) Mobile.
