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Service

Procedure Name

Network  Plane

Protocols

VoNR

5G Dedicated QFI Creation

Session Management

SIP, DIAMETER, HTTP2, PFCP, NGAP

VoNR

5G Dedicated QFI Deletion

Session Management

SIP, DIAMETER, HTTP2, PFCP, NGAP

VoNR

Call Hold

IMS SIP

SIP, DIAMETER, HTTP2, PFCP, NGAP

VoNR

Call Media

IMS SIP

RTP

VoNR

Call Refer

IMS SIP

SIP, DIAMETER, HTTP2, PFCP, NGAP

VoNR

Call Release

IMS SIP

SIP, DIAMETER, HTTP2, PFCP, NGAP

VoNR

Call Resume

IMS SIP

SIP, DIAMETER, HTTP2, PFCP, NGAP

VoNR

Call Setup

IMS SIP

SIP, DIAMETER, HTTP2, PFCP, NGAP, SDP

VoLTE

4G Dedicated Bearer Creation

Session Management

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP, SDP

VoLTE

4G Dedicated Bearer Deletion

 Session Management

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP

VoLTE

Call Hold

IMS SIP

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP, SDP

VoLTE

Call Media

IMS SIP

RTP

VoLTE

Call Refer

IMS SIP

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP, SDP

VoLTE

Call Release

IMS SIP

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP

VoLTE

Call Resume

IMS SIP

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP, SDP

VoLTE

Call Setup

IMS SIP

SIP, DIAMETER, GTPv2_S11_S5_S2b, S1AP, SDP

E911

Call Media

SoS Management

SIP, GTPv2_S11_S5_S2b, S1AP, MLP, ULP, LCSAP

E911

Call Release

SoS Management

SIP, GTPv2_S11_S5_S2b, S1AP, MLP, ULP, LCSAP

E911

Call Setup

SoS Management

SIP, GTPv2_S11_S5_S2b, S1AP, MLP, ULP, LCSAP

5G SMS NAS-5GS

5GS SMS MO

Session Management

NGAP, HTTP2

5G SMS NAS-5GS

5GS SMS MO Delivery

Session Management

NGAP, HTTP2

5G SMS NAS-5GS

5GS SMS MT

Session Management

NGAP, HTTP2

5G SMS NAS-5GS

5GS SMS MT Delivery

Session Management

NGAP, HTTP2

5G SMS NAS-5GS

5GS SMS Registration

Session Management

NGAP, HTTP2

5G SA Connectivity

5G De-Registration

Mobility Management

NGAP, HTTP2, PFCP, SIP

5G SA Connectivity

5G Dedicated QFI Creation

Session Management

NGAP, HTTP2, PFCP, SIP

5G SA Connectivity

5G Dedicated QFI Deletion

Session Management

NGAP, HTTP2, PFCP, SIP

5G SA Connectivity

5G PDU Establishment

Session Management

NGAP, HTTP2, PFCP, SIP

5G SA Connectivity

5G PDU Release

Session Management

NGAP, HTTP2, PFCP, SIP

5G SA Connectivity

5G Registration

Mobility Management

NGAP, HTTP2, PFCP, SIP

5G SA Connectivity

SIP De-Registration

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP Re-Registration

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP Registration

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-De-Registration to IPSMGW

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-De-Registration to SCCAS

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-De-Registration to TAS

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-Re-Registration to IPSMGW

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-Re-Registration to SCCAS

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-Re-Registration to TAS

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-Registration to IPSMGW

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-Registration to SCCAS

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

5G SA Connectivity

SIP TP-Registration to TAS

IMS SIP Registration

NGAP, HTTP2, PFCP, SIP,  Diameter

4G/5G SMS IMS

IMS SMS MO

IMS SIP

SIP, DIAMETER

4G/5G SMS IMS

IMS SMS MO Delivery

IMS SIP

SIP, DIAMETER

4G/5G SMS IMS

IMS SMS MT

IMS SIP

SIP, DIAMETER

4G/5G SMS IMS

IMS SMS MT Delivery

IMS SIP

SIP, DIAMETER

4G/5G SMS IMS

IMS SMS Registration

IMS SIP

SIP, DIAMETER

4G/5G NSA Connectivity

4G Attach

Mobility Management

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

4G Dedicated Bearer Creation

Session Management

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

4G Dedicated Bearer Deletion

Session Management

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

4G Detach

Mobility Management

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

4G PDN Establishment

Session Management

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

4G PDN Release

Session Management

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP De-Registration

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP Re-Registration

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP Registration

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-De-Registration to IPSMGW

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-De-Registration to SCCAS

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-De-Registration to TAS

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-Re-Registration to IPSMGW

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-Re-Registration to SCCAS

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-Re-Registration to TAS

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-Registration to IPSMGW

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-Registration to SCCAS

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G NSA Connectivity

SIP TP-Registration to TAS

IMS SIP

S1AP, GTPv2_S11_S5_S2b, DIAMETER, HTTP2, PFCP, SIP

4G/5G Mobility

4G to 4G X2 Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

4G to 5G Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

4G to 5G TAU

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

4G to Wifi Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to 4G EPSFB Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to 4G EPSFB TAU

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to 4G Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to 4G TAU

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to 5G N2 Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to 5G Xn Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

5G to Wifi Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

Wifi to 4G Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Mobility

Wifi to 5G Handover

Mobility Management

NGAP, HTTP2, PFCP, GTPv2_N26, S1AP, GTPv2_S11_S5_S2b

4G/5G Data

Data Transfer  

Data

GTPu_N3, GTPu_S1u_S5u_S2b

4G/5G NSA Connectivity

Flows with Only Diameter Protocols (Gx, S6a/S6d, Cx, Sh, S13, Sy)

  • Comment: The procedure column is empty and it is expected because the Diameter protocols (Gx, S6a/S6d, Cx, Sh, S13, Sy) are not sufficient on their own to fully describe the callflows.

Flows with HTTP2 Payload Decoding Issues

  • Comment: The procedure column is empty because the HTTP2 messages payloads are not decoded. This occurs when the content type and boundary parameters are missing from the headers.

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5G SA Connectivity

Flows with HTTP2 Fragmented Messages

  • Comment: The procedure column is empty due to fragmented flows where key SM (Session Management) messages, such as thePDU Session Establishment Request, are missing from both NGAP and HTTP2 protocols.

Flows with NAS Ciphered Messages

  • Comment: The procedure column is empty because the NAS (Non-Access Stratum) messages are ciphered, and HTTP2 messages are absent. This prevents the decoding of critical information.

Flows with NGAP based on NAS 5GMM

  • Comment: The procedure column is empty because NGAP messages lack HTTP2 data and do not include msg_cause information. For example, the cause for dedicated QFI (QoS Flow Identifier) establishment in a PDU Resource Modify Command is not exposed.

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VoLTE

Flows with Only DIAMETER Rx

  • Comment: The procedure column is empty because the Diameter Rx protocol alone is insufficient to fully describe the flows.

Flows with VoWifi based on GTPv2

  • Comment: The procedure column is empty because these types of flows are missing SIP messages.

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VoNR

Flows with Only DIAMETER Rx

  • Comment: The procedure column is empty because the Diameter Rx protocol alone is insufficient to fully describe the flows.

Flows with VONR based on HTTP2

  • Comment: The procedure column is empty because these types of flows are missing SIP messages.