Requirements for vertical handover of multimedia sessions using SIP

Document Type Expired Internet-Draft (individual)
Authors Saverio Niccolini  , Stefano Salsano  , Haruki Izumikawa  , Ross Lillie  , Luca Veltri  , Yoji Kishi 
Last updated 2008-11-03
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A vertical handover occurs in heterogeneous networks when a session media is moved among different access network technologies within the same device. This document analyses the issue of handling the vertical handover using the Session Initiation Protocol (SIP) [1].


Saverio Niccolini (
Stefano Salsano (
Haruki Izumikawa (
Ross Lillie (
Luca Veltri (
Yoji Kishi (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)