Many 3GPP operators regard circuit switched video services as a key part of UMTS. However there is a strong desire to
have an effective and user friendly method of switching between voice and video services when the user desires and/or
when radio conditions change and video mode is no longer available.
Following a study of alternative mechanisms, this Technical Report describes the idle mode redial mechanism which
3GPP based systems can use to enhance switching between voice and video services.
full Table of Contents for TR 23.903 Word version: 15.0.0