Universal Personal Telecommunication (UPT); Phase 1 (restricted UPT service scenario); Functional requirements for Dual Tone Multi-Frequency (DTMF) type UPT access devices
Speech and multimedia Transmission Quality (STQ); Transmission Requirements for IP-based Narrowband and Wideband Home and Network Media Gateways from a QoS Perspective as Perceived by the User
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Location Services (LCS); LCS Application Protocol (LCS-AP) between the MME and E-SMLC; SLs interface (3GPP TS 29.171 version 16.1.0 Release 16)
Digital cellular telecommunications system (Phase 2+) (GSM); GSM Cordless Telephony System (CTS), Phase 1; CTS-FP Radio subsystem (3GPP TS 45.056 version 16.0.0 Release 16)