File Transfer Services in the Context of SIP Based Communication - PowerPoint PPT Presentation

Feb 27, 2024 •498 likes •552 views

File Transfer Services in the Context of SIP Based Communication Markus Isomki markus.isomaki@nokia.com draft-isomaki-sipping-file-transfer-00 Motivation SIP provides an extensive set of mechanisms for user-to-user communication

File Transfer Services in the Context of SIP Based Communication Markus Isomäki markus.isomaki@nokia.com draft-isomaki-sipping-file-transfer-00
Motivation • SIP provides an extensive set of mechanisms for user-to-user communication • Identity, personal mobility, Security, NAT traversal • It would be desirable to integrate user-to-user file transfer services to that framework together with multimedia sessions, IM, presence and conferencing • Combined use utilizing SIP identity • Implementations of file transfer services already exist in SIP UAs • Need to address interoperability • This is not an attempt to • Define how SIP itself is used to transport files • Standardize how the UI should work • Re-invent existing mechanisms such as HTTP, FTP, e-mail or IM
Scenarios – Ad Hoc or “Page-mode” • One-to-one • Signaling before UA UA actual transfer • UAS can accept or reject Storage • Directly or via a storage • One-to-many UA UA URI list UA UA Storage
Scenarios – Session Related • One-to-one session • Everything happens within the scope of the UA UA session/conference • UAS can accept or reject Storage • Conference UA UA Focus UA UA Storage
Existing Solutions and Potential Work • There are already existing components that can be used • SIP MESSAGE + Content indirection + HTTP/TLS • MSRP • Useful components under development • MSRP conferencing (perhaps by 2010?) • Potential new work • Completing requirements document • MSRP with content indirection • Short document needed? • File transfer negotiation mechanism • Request with metadata, Accept/Reject • Scenarios document • Informational/BCP describing how to do these things to improve interoperability

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