Call Flows

• IMSI Attach
• GPRS Attach
• GSM to GSM Call
• GSM to UMTS Call
• GSM to VoLTE Call
• GSM to Wi-Fi Call
• GSM to PSTN Call
• PSTN to GSM Call
• PDP Context Activation

Network Procedures

• IMSI Attach
• GPRS Attach
• Mobile Originated Call
• Mobile Terminated Call
• PDP Context Activation
• Suspend and Resume
• Mobile Originated SMS
• Mobile Terminated SMS

Call Flows

• IMSI Attach
• GPRS Attach
• UMTS to GSM Call
• UMTS to UMTS Call
• UMTS to VoLTE Call
• UMTS to Wi-Fi Call
• UMTS to PSTN Call
• PSTN to UMTS Call
• PDP Context Activation

Network Procedures

• Packet Switched Attach
• Circuit Switched Attach
• Mobile Originated Call
• Mobile Terminated Call
• PDP Context Activation
• Mobile Originated SMS
• Mobile Terminated SMS

Call Flows

• Network Registration
• VoLTE to GSM Call
• VoLTE to UMTS Call
• VoLTE to VoLTE Call
• VoLTE to Wi-Fi Call
• VoLTE to PSTN Call
• PSTN to VoLTE Call
• PDN Connectivity Establishment
• Network Initiated Dedicated Bearer Establishment
• X2 Handover

Network Procedures

• Attach and Default EPS Bearer Establishment
• Attach and Default EPS Bearer Establishment (CUPS)
• Combined Attach and Default EPS Bearer Establishment
• EPS Attach (Internet) and PDN Connectivity (IMS)
• Dedicated EPS Bearer Establishment
• Dedicated EPS Bearer Establishment (CUPS)
• EPS Bearer Modification (Network Initiated)
• Uplink Data Transfer - Service Request
• Downlink Data Transfer - Notification and Paging
• Tracking Area Update - 3G to LTE
• Tracking Area Update - Combined
• Tracking Area Update - S-GW Relocation
• X2 Handover
• X2 Handover (S-GW Relocation)
• S1 Handover
• S1 Handover (S-GW and MME Relocation)
• CSFB - Mobile Originated Call
• CSFB - Mobile Terminated Call
• CSFB - Mobile Originated SMS
• CSFB - Mobile Terminated SMS
• S1 Reset
• S1 Release
• EPS Bearer Deactivation (Network Initiated)
• PDN Disconnect
• Combined Detach
• X2 Setup
• S1 Setup

Air Interface

• System Information
• RRC Connection Establishment - MO Data
• RRC Connection Reconfiguration - Measurement Configuration and Reporting
• UE Capabilities - Release 10
• CA Mobility
• Carrier Aggregation Configuration
• CoMP Configuration
• EPDCCH Configuration
• Dual Connectivity
• Measurement Configuration - CSI-RS

Call Flows

• 5G Registration
• Network Initiated QoS Flow Establishment
• PDU Session Establishment
• Change of secondary node (EN-DC)
• Option 3X Connectivity
• X2 Handover (EN-DC Dual Connectivity)
• Change of secondary node (NR-NR)
• EPS Fallback (RAT Fallback and EPS Fallback variants)
• Inter gNB-CU-CP Handover
• Intra gNB-CU Handover
• N2 Handover
• N2 Handover (Intermediate UPF Addition)
• NR to LTE Handover (N26)
• Xn Handover
• Xn Handover (Intermediate UPF Addition)
• Xn Handover (NR-NR Dual Connectivity)

Network Procedures

• Registration
• Registration (non-3GPP Access)
• Registration (W-5GAN - 5G-RG)
• Registration (W-5GAN - FN-RG)
• Provisioning for PDU Session Establishment
• PDU Session Establishment
• PDU Session Establishment (non-3GPP Access)
• PDU Session Establishment (W-5GAN - 5G-RG)
• PDU Session Establishment (W-5GAN - FN-RG)
• PDU Session Modification (non-3GPP access)
• UE Initiated Deregistration
• NAS Signalling Connection Release
• Network Initiated Deregistration
• UE Triggered Service Request
• 5G-RG Triggered Service Request (W-5GAN)
• Network Triggered Service Request (Paging)
• Network Initiated QoS Flow Establishment (PDU Session Modification)
• Registration Area Update (Mobility)
• Xn Handover
• Xn Handover (Intermediate UPF Relocation)
• N2 Handover
• Dual Connectivity (Change of Secondary Node)
• 5GS to EPS Handover (with N26)
• EPS to 5GS Handover (with N26)
• EN-DC Secondary Node Addition
• EN-DC Secondary Node Modification
• EN-DC Change of Secondary Node
• EN-DC Release of Secondary Node
• Inter MeNB Handover with EN-DC
• 5GS to EPS Mobility (without N26)
• C-RAN - UE Initial Access
• C-RAN - Intra gNB-CU Handover
• C-RAN - Inter gNB-DU Handover (EN-DC)
• Uplink Classifier Addition
• 5G & AV - V2X Policy and Provisioning
• 5G & AV - Groupcast Mode Communication
• 5G & AV - Unicast Mode Communication
• 5G & AV - Broadcast Mode Communication
• Network Slice Instance Allocation
• 5G V2X Registration
• 5G V2X PDU Session Establishment
• 5G VAE Registration

Air Interface

• NR System Information
• NR Access and RRC Setup
• NR RRC Setup and Registration
• NR RRC and PDU Session Establishment (Internet and IMS)
• NR Conditional Handover
• RRC Measurement Report and Xn Handover

Call Flows

• Wi-Fi to GSM Call
• VoLTE to GSM Call
• Wi-Fi to UMTS Call
• VoLTE to UMTS Call
• Wi-Fi to VoLTE Call
• VoLTE to VoLTE Call
• Wi-Fi to Wi-Fi Call
• VoLTE to Wi-Fi Call
• Wi-Fi to PSTN Call
• VoLTE to PSTN Call
• PSTN to Wi-Fi Call
• PSTN to VoLTE Call

Network Procedures

• Subscriber Registration
• Session Establishment
• IMS Messaging
• Rx - Authorization Authentication Request and Answer (Voice and Video Call)
• Gx - Credit Control Request and Answer (LTE Initial Attach)
• Rx - Abort Session
• ViLTE Call
• VoLTE Call (S1-U Capture)
• AF Session Establishment (VoLTE)
• IMS Registration (VoLTE)
• VoLTE to CS Call
• SRVCC Handover (4G to 3G)
• VoLTE to CSFB (3G)
• VoLTE Call Failure - Reason Header
• VoNR to PSTN Call
• PSTN to VoNR Call

Call Flows

• Wi-Fi to GSM Call
• Wi-Fi to UMTS Call
• Wi-Fi to VoLTE Call
• Wi-Fi to Wi-Fi Call
• Wi-Fi to PSTN Call
• PSTN to Wi-Fi Call

Network Procedures

• Wi-Fi Setup

Call Flows

• No Call Flows available

Network Procedures

• Attach and Default EPS Bearer Establishment
• Attach without PDN Connectivity
• Dedicated Core Network Attach (DECOR)
• S1 Release
• IDD Uplink Data Delivery
• IDD Downlink Data Delivery
• Control Plane CIoT EPS Optimization - IDD Uplink Data Delivery
• Control Plane CIoT EPS Optimization - IDD Downlink Data Delivery
• User Plane CIoT EPS Optimization - Connection Suspension / Resumption
• User Plane CIoT EPS Optimization - Connection Suspension / Resumption on Different eNB
• SGi Based - NIDD Uplink Data Delivery
• SGi Based - NIDD Uplink Data Delivery (Control Plane CIoT EPS Optimization)
• SGi Based NIDD Downlink Data Delivery
• SGi Based - NIDD Downlink Data Delivery (Control Plane CIoT EPS Optimization)
• SCEF Based - NIDD Configuration
• SCEF Based - NIDD Connection Establishment
• SCEF Based - NIDD Uplink Data Delivery
• SCEF Based - NIDD Downlink Data Delivery
• Monitoring Devices - Location Reporting
• Monitoring Devices - Change in IMSI and IMEI/SV Association
• Monitoring Devices - Availability after DDN Failure
• Tracking Area Update
• X2 Handover
• S1 Handover