1. November 2001 H.324 / M Interoperability Chair – Bernhard Wimmer q Observations:  The IMTC is the appropriate forum to champion this work  H.324 is pretty much settled  New H.324 Mobile Product Implementations are emerging due standardization by 3GPP q Recommendations: q Develop H.324/M Interoperability Test Plan and Score Sheet q Coordinate H.324 Interoperability Test Events with 3GPP (and ITU-T SG16) q Educate Members on latest Standards Updates q Provide feedback and suggestions for improvements to 3GPP q Encourage use of reflectors for e-mail discussions on implementation issues q Contribute to H.324/H324Mobile interworking planning.

2. November 2001 3GPP 3G-324M Overview q ITU-T developed H.324 Mobile extension (H.324M)  H.324 Annex C has been established in ’ 98.2 q 3GPP extended H.324 Annex C  3G-324M has been established in ’ 99.12 q Specified the audio/video CODECs suitable for Wireless Network q Mandatory support of AMR speech CODEC q Mandatory support of H.263 baseline q Optionally but recommended support of MPEG-4 Simple Profile @ Level 0 q Specified the multiplexing for Wireless Network q Mandatory support of H.223 Level 2 (Annex B) q Added several clarifications q Based on the interoperability test carried out by the interested companies  Described in 3G-324M Implementor ’ s Guide

3. November 2001 Building Blocks of 3G-324M/ H.324M q H.223 multiplexed bitstream is mapped onto digital channel q Bearer control messages are delivered as in-band data q Modem/Mode negotiation is not applied H.223 Annex B Bearer Control H.245 Audio CODEC AMR Call Control Wireless Network I/F Video CODEC H.263/MPEG-4 Out-band In-band Wireless Network