draft-miniero-mediactrl-escs-01 Alessandro Amirante Tobia Castaldi Lorenzo Miniero Simon Pietro Romano (University of Napoli Federico II)

draft-miniero-mediactrl-escs-01 2 Changes from -00 to -01 All scenarios and flows have been updated to the latest specifications –Reflects changes in the core framework –Added ‘ctrl-package’ attribute –Updated all flows involving Basic IVR Added new scenarios –Voice Mail –BFCP-moderated conferencing (placeholder) New draft reflects updated implementation

draft-miniero-mediactrl-escs-01 3 Voice Mail Scenario Simplified scenario –Some features already described Shows use of new Basic IVR features VCR Controls –Do they need to belong to ? Ambiguity with other and attributes Variable announcements –Which is the base url? –Is the filenames construction implementation specific? A1. AS -> MS (SCFW CONTROL, play) SCFW 1gffh68hydx0 CONTROL Control-Package: msc-ivr-basic Content-Type: text/xml Content-Length: 271 <media src=" type="audio/wav"/> <media src=" type="audio/wav"/> <media src=" type="audio/wav"/> C1. AS -> MS (SCFW CONTROL, VCR) SCFW p0ofgh35vzx1 CONTROL Control-Package: msc-ivr-basic Content-Type: text/xml Content-Length: 271 <media src=" type="audio/wav"/> D1. AS <- MS (SCFW CONTROL event) SCFW 4rfg34fg21ge CONTROL Control-Package: msc-ivr-basic/1.0 Content-Type: text/xml Content-Length: 126

draft-miniero-mediactrl-escs-01 4,, Models in place of templates –More flexible than before –Is order important? Should it be? –May be confusing (e.g. VCR) Iterations only for now –Should the attribute be global? New “termmode” attribute –A termination mode for hangup may be useful Still ambiguous in some parts –Offset (in ), timeout vs maxtime (in ), dest (in ), etc.

draft-miniero-mediactrl-escs-01 5 Basic IVR: CONTROL Use of MS-generated CONTROL messages for event notification –Works fine, tested in many scenarios –However, may lead to starvation for the AS… Is there a need for a “keep-alive”? –A timeout is not feasible, dialogs could be long lasting by request e.g. record a conference for 3 hours

draft-miniero-mediactrl-escs-01 6 element Implementation now partly supports video (for between endpoints) –Attaching media is fine as long as each medium in the same session is of a different type –Even by using, that’s an issue e.g. joining two endpoints which negotiated two different audio streams with each other Same issue applies for and in Basic IVR…

draft-miniero-mediactrl-escs-01 7 Discussion Framework is improving IVR package is evolving well –Many scenarios achievable –Currently, just a few issues Implementation work to verify this is currently in full swing –Still some ambiguities in the specification for implementors Conferencing package still needs work Related to our draft: –Please read it and send us comments! –We do believe it contains a bunch of useful information –Ready to become a WG item?

draft-miniero-mediactrl-escs-01 8 Work in progress in Naples Check out our mediactrl site on sourceforge: – A summary of all our efforts related to mediactrl –Media Server implementation & docs –Application Server implementation & docs Download it, install it and play with it! Looking for other implementations to come: –Interoperability next IETF?