Requirements on VoLTE-compatible UEs
UE Identification in IMS: IMPU, IMPI with ISIM/USIM options
UE as a SIP UA
VoLTE-specific procedures in the UE: LTE Attach, PDN Connection Establishment, IMS Registration, VoLTE Session Setup

Requirements on the E-UTRA network for voice connections
QoS guarantees to set up resources for SIP Signalling on Default EPS Bearer and for the voice samples on Dedicated EPS Bearer
Resource description in EPS, QCI
Routing options: Local Breakout, Home Routed traffic
CSFB as a pre-IMS call continuity feature
VoLTE-specific procedures and basic parameters in the EPS: LTE Attach, PDN Connection Establishment to IMS

Untrusted WiFi as one of the Access Networks that can act as IMS IP-CANs
Multimedia Telephony as one of the possible services handled by IMS
MMtel Subscription in IMS: IMS Service Profile for VoLTE, including initial Filter Criteria
IMS Application Servers for VoLTE: TAS, SCC AS
Policy and Charging Control with PCRF as a Policy Manager
VoLTE-specific procedures and basic parameters in IMS: IMS Registration for MMtel, VoLTE Session setup, SRVCC
Terminating Access Domain Selection for incoming calls
Supplementary Services handling
Interworking between IMS and legacy CS: IMS breakout/break-in
SMS over IMS

About the training

Includes