Application-layer mobility using SIP
Henning G. Schulzrinne, E. Wedlund · 2002
Supporting mobile Internet multimedia applications requires more than just the ability to maintain connectivity across subnet changes. We describe how the Session Initiation Protocol (SIP) can help provide terminal, personal, session and service mobility to applications ranging from Internet telephony to presence and instant messaging. We also discuss application-layer mobility for streaming multimedia applications initiated by RTSP.