The ITU-T H.263+ low bit-rate video coding standard is Version 2 of the draft international standard ITU-T H.263. Currently, we are a contributing party in the H.263+ standardization effort. In this paper, we discuss this emerging video coding standard and present compression performance results based on our public domain implementation of H.263+. Keywords : Video compression, H.263 and H.263+ video coding standards, video telephony, video conferencing.