2012/12 69 p.
This Technical Report is to specify architecture enhancement toward SMS submit/delivery mechanism in IMS to allow
IMS registered UE to:
Receive and send SMS without requiring an MSISDN associated as part of their IMS subscription record in HSS
any possible enhancements towards the related storing and forwarding mechanism if the UE is out of reach.
full Table of Contents for TR 23.863 Word version: 12.0.0