Application enablement aspects for MMTel
The present document specifies the application layer architecture and procedures to support the MMTel service, and also specifies the service enabler layer capability exposure procedures and related APIs for enablement aspects of MMTel service
This work takes into consideration the existing stage 1 and stage 2 work within 3GPP related to MMTel service specified in 3GPP TS 22.261 [2], 3GPP TS 23.228 [3] and 3GPP TS 26.114 [4].