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  • Intro

  • 4G-5G NSA Connectivity

  • 4G-5G-NSA Data

  • 5G-SA Connectivity

  • 5G-SA Data

    5G SA

    Intro

    This Model coverage doc helps users decipher which service models to use to run predictions using AGILITY CV.

    4G-5G NSA Connectivity

    4G-5G-NSA Data

    The 4G-5g-NSA model includes the following captures required from NE interfaces:​

    eNodeB: X2

    gNodeB: X2 (for 5G NSA configuration)

    MME: S1_MME, S11, S6a

    S-GW: S11, S5c

    P-GW: S5c, Gx, Gy

    PCRF: Sy

    5G-SA Connectivity

    Network Element

    NGAP Interfaces

    PFCP Interfaces

    HTTP2 Services Invoked

    Notes

    AMF

    N1/N2​

    Namf, Nausf,Nnssf, Nudm,Npcf, Nsmf, Nnrf​

    Essential capture point​

    SMF

    N4​

    Nsmf, Nudm, Npcf, Nnrf, Namf, Nchf​

    Essential capture point​

    UDM

     ​

     ​

    Nudr, Namf​

    More insight provided by this capture point. ​

    PCF

     ​

     ​

    Nbsf, Nsmf, Nudr​

    More insight provided by this capture point.​

     

    5G-SA Captured Data Points

    5G-SA Data

    The 5g-SA model includes captures of Data calls from:​

    gNodeB: N3​

    AMF: N2, Namf, Npcf, Nudm, Nsmf, Naf, Nnef, Nausf, Nnrf​

    SMF: N4, Nsmf, Nudm, Npcf, Nnrf, Namf, Nchf​

    UPF: N3, N4, N6​

    UDM: Nudr, Namf 

    PCF: Nbsf, Nsmf, Nudr​

    5G SA Captured Data Points Diagram

     

    ​The 5G-SA Mobility Model’s Captures

    The 5G-S model includes captures of handover calls from:​

    gNodeB: Xn, Xnc, N2​

    O-CU: Xn, Xnc, N2 (O-Ran scenarios)​

    AMF: N2​

    UPF: N3, N6​

    • 5G SA​

    • Xn based handover (handled directly between gNodeB’s)​

    • N2 based handover (Coordinated by AMF)​

    5G-SA Mobility Captured Data Points Diagram

     

    The Inter-RAT / EPS Fallback 5G - 4G Mobility Model’s Captures

    Method #1: 5G to 4G Inter-RAT Handover

    In this method, the N26 interface between AMF and MME uses a Forward Relocation procedure and session management context. Additionally, user plane tunnels in the core network are exchanged over from SMF/UPM to MME/S-GW.​

    Method #2: 5G to 4G Release with Redirection

    In this method, the 5G radio connection is released with the 5G RRC Release instructing the UE to reselect to a 4G cell where a new radio connection can be started for the VoLTE call. In this case, the UE context is transferred from the AMF to the MME over the N26 interface.

    The Inter-RAT / EPS Fallback 5G - 4G – Mobility Model captures:

    eNodeB: X2​

    gNodeB: X2 (for 5G NSA configuration)​

    MME: S1_MME, S11, S6a​

    S-GW: S11, S5c​

    P-GW: S5c, S5u, SGi​

    AMF: N26, N2, S11​

    SMF: N4, Nsmf, Nudm, Npcf, Nnrf, Namf, Nchf​

    UPF: N3, N4, N6​​

    Inter-RAT / EPS Fallback 5G - 4G Mobility Captured Data Points Diagram

    The Voice & Video Services: VoLTE Model’s Captures

    The Voice & Video Services: VoLTE Model captures:

    MME: S1_MME, S11, SLs​

    S-GW: S1u, S5c, S5u​

    P-GW: S5c, S5u, Gm, Gy, Gx​

    OCS: Gy, Sy, Ro​

    HSS: S6a, Cx, Sh​

    S-CSCF: Mw, Mx, Mr, Mg, Mi, ISC, Cx​

    TAS: Mr​

    IBCF: Ici ​

    MGCF: ISUP​

    Voice & Video Services: VoLTE Captured Data Points Diagram

    The Voice & Video Services: VoNR Model’s Captures

    VoNR Scenario #1:  Diameter Routing Agent (DRA) 

    Scenario 1 consists of a Diameter Routing Agent connected with 5G Core that supports Diameter​, In this scenario, the Voice & Video Services: VoNR Model captures Voice / Video calls from:​

    gNodeB: N3​

    AMF: N2, HTTP2 SBA services​

    SMF: N4, HTTP2 SBA services​

    UPF: N3, N4, N6​

    UDM: HTTP2 SBA services​

    PCF: HTTP2 SBA services​

    I/S-CSCF: Mw, ISC, Cx​

    TAS: Sh​

    VoNR Scenario #1 Captured Data Points Diagram

     

    VoNR Scenario #2 – Interworking Function

    Scenario 2 consists of Diameter to HTTP2 using Interworking Function (IWF) connecting IMS with 5G Core through HTTP2 bus. ​In scenario 2, the Voice & Video Services: VoNR Model captures Voice / Video calls from:​

    gNodeB: N3​

    AMF: N2, HTTP2 SBA services​

    SMF: N4, HTTP2 SBA services​

    UPF: N3, N4, N6​

    UDM: HTTP2 SBA services​

    PCF: HTTP2 SBA services​

    I/S-CSCF: Mw, ISC, Cx​

    TAS: Sh​

    VoNR Scenario #2 Captured Data Points Diagram

     

    Model Coverage Table

    Technology

    Service

    Sub Service

    Supported Procedures

    Protocols

    Interface

    Network Elements A

    Network Elements B

    Status

    4G-5G NSA

    Connectivity 

     

    Attach

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G -5G NSA

    Connectivity 

     

    Authentication

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G -5G NSA

    Connectivity 

     

    Authentication

    Diameter

    S6a

    MME

    HSS

    Available

    4G -5G NSA

    Connectivity 

     

    Security Mode

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G -5G NSA

    Connectivity 

     

    Location Update

    Diameter

    S6a

    MME

    HSS

    Available

    4G -5G NSA

    Connectivity 

     

    Session Establishment

    GTPV2

    S11

    MME

    SGW

    Available

    4G -5G NSA

    Connectivity 

     

    Session Establishment

    GTPV2

    S5SGW

    PGW

    Available

    4G -5G NSA

    Connectivity 

     

    Policy control 

    Diameter

    Gx

    PGW

    PCRF

    Available

    4G -5G NSA

    Connectivity 

     

    online charging 

    Diameter

    Gy

    PGW

    OCS

    Available

    4G -5G NSA

    Connectivity 

     

    Initial Context request 

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G -5G NSA

    Connectivity 

     

    Bearer modification

    GTPV2

    S11

    MME

    SGW

    Available

    4G -5G NSA

    Connectivity 

     

    Policy control 

    Diameter

    Sy

    PCRF

    OCS

    Available

    4G -5G NSA

    Connectivity 

     

    Session Delete

    GTPV2

    S11MME

    SGW

    Available

    4G -5G NSA

    Connectivity 

     

    Session Delete

    GTPV2

    S5

    SGW

    PGW

    Available

    4G -5G NSA

    Connectivity 

     

    Detach

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G -5G NSA

    Connectivity 

     

    Context Release 

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G-5G NSA

    Connectivity 

     

    Registration 

    SIP

    IMS

    UE

    P,S,I-CSCF

    Available

    5G SA

    Connectivity 

     

    Service Registration

    HTTP2

    NsmfSMF

    NRF

    Available

    5G SA

    Connectivity 

     

    online charging 

    HTTP2

    Nsmf

    SMF

    CHF

    Available

    5G SA

    Connectivity 

     

    Policy control 

    HTTP2

    Nsmf

    SMF

    PCF

    Available

    5G SA

    Connectivity 

     

    Registration 

    HTTP2

    NsmfSMF

    UDM

    Available

    5G SA

    Connectivity 

     

    BroadForward Binding

    HTTP2

    Nbsf

    BSF

    PCF

    Available

    5G SA

    Connectivity 

     

    Converged charging 

    HTTP2

    Nchf

    CHF

    PCF

    Available

    Nchf

    5G SA

    Connectivity 

     

    Converged charging 

    HTTP2

    Nchf

    CHF

    SMF

    Available

    5G SA

    Connectivity 

     

    Policy control 

    HTTP2

    NnrfNRF 

    PCF

    Available

    5G SA

    Connectivity 

     

    DataRepository

    HTTP2

    Nudr

    UDR

    PCF

    Available

    5G SA

    Connectivity 

     

    Session Establishment

    PFCP

    N4

    SMF

    UPF

    Available

    5G SA

    Connectivity 

     

    Session modification

    PFCP

    N4SMF

    UPF

    Available

    5G SA

    Connectivity 

     

    Session Deletion

    PFCP

    N4

    SMF

    UPF

    Available

    4G 

    VOLTE

    Volte call conference

    MO-Calling party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    SIP

    IMS

    4G 

    VOLTE

    Volte call conference

    MT-Called party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte call conference

    Call forwarding/divert leg

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    SIP

    IMS

    4G 

    VOLTE

    Volte call conference

    Call Conference prep leg

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte call conference

    Call conference server leg

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    IMS

    4G 

    VOLTE

    Volte call conference

    call Hold

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte call conference

    online charging 

    Diameter

    GxPGW

    PCRF

    Available

    4G 

    VOLTE

    Volte call conference

    online charging 

    Diameter

    Gy

    PGW

    OCS

    Available

    4G 

    VOLTE

    Volte call conference

    online charging 

    Diameter

    Sy

    PGW

    PCRF

    Available

    4G 

    VOLTE

    Volte call conference

    Location info

    Diameter

    IMSICSCF

    HSS

    Available

    4G 

    VOLTE

    Volte call conference

    User Data

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte call conference

    Subscribe-Notifications

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte call conference

    AAA

    Diameter

    IMSPCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte call conference

    Authentication

    Diameter

    IMS

    PCRF

    PCSCF

    Available

    4G 

    VOLTE

    Volte call conference

    Session-Termination

    Diameter

    IMS

    PCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte call conference

    Authentication

    Diameter

    IMSPCRF

    PGW

    Available

    4G 

    VOLTE

    Volte call conference

    Spending-Limit

    Diameter

    IMS

    PCRF

    OCS

    Available

    4G 

    VOLTE

    Volte call conference

    Accounting

    Diameter

    IMS

    PGW

    CDF

    Available

    4G 

    VOLTE

    Volte call conference

    Credit-Control Request

    Diameter

    IMSTAS

    OCS

    Available

    4G 

    VOLTE

    Volte call conference

    Session-Termination

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte call conference

    AAA

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte call conference

    Server-Assignment 

    Diameter

    IMSAAA

    HSS

    Available

    4G 

    VOLTE

    Volte call conference

    Session Establishment

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte call conference

    Session Establishment

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte call conference

    Session modification

    GTPV2

    S8SGW

    PGW

    Available

    4G 

    VOLTE

    Volte call conference

    Session termination 

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte call conference

    Session modification

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte call conference

    Session termination 

    GTPV2

    S5MME

    SGW

    Available

    4G 

    VOLTE

    Volte call conference

    Registration 

    SIP

    IMS

    UE

    P,S,I-CSCF

    Available

    4G 

    VOLTE

    Volte call conference

    Attach

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call conference

    Authentication

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call conference

    Security Mode

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call conference

    Initial Context request 

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call conference

    Detach

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call conference

    Context Release 

    S1AP

    S1-MME

    eNodeB

    S1-MME

    Available

    4G 

    VOLTE

    Volte call forward 

    MO-Calling party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte call forward 

    MT-Called party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    SIP

    IMS

    4G 

    VOLTE

    Volte call forward 

    Call forwarding/divert leg

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte call forward 

    Call Hold

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte call forward 

    online charging 

    Diameter

    GxPGW

    PCRF

    Available

    4G 

    VOLTE

    Volte call forward 

    online charging 

    Diameter

    Gy

    PGW

    OCS

    Available

    4G 

    VOLTE

    Volte call forward 

    online charging 

    Diameter

    Sy

    PGW

    PCRF

    Available

    4G 

    VOLTE

    Volte call forward 

    Location info

    Diameter

    IMSICSCF

    HSS

    Available

    4G 

    VOLTE

    Volte call forward 

    User Data

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte call forward 

    Subscribe-Notifications

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte call forward 

    AAA

    Diameter

    IMSPCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte call forward 

    Authentication

    Diameter

    IMS

    PCRF

    PCSCF

    Available

    4G 

    VOLTE

    Volte call forward 

    Session-Termination

    Diameter

    IMS

    PCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte call forward 

    Authentication

    Diameter

    IMSPCRF

    PGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Spending-Limit

    Diameter

    IMS

    PCRF

    OCS

    Available

    4G 

    VOLTE

    Volte call forward 

    Accounting

    Diameter

    IMS

    PGW

    CDF

    Available

    4G 

    VOLTE

    Volte call forward 

    Credit-Control Request

    Diameter

    IMSTAS

    OCS

    Available

    4G 

    VOLTE

    Volte call forward 

    Session-Termination

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte call forward 

    AAA

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte call forward 

    Server-Assignment 

    Diameter

    IMSAAA

    HSS

    Available

    4G 

    VOLTE

    Volte call forward 

    Session Establishment

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Session Establishment

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Session modification

    GTPV2

    S8SGW

    PGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Session termination 

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Session modification

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Session termination 

    GTPV2

    S5MME

    SGW

    Available

    4G 

    VOLTE

    Volte call forward 

    Registration 

    SIP

    IMS

    UE

    P,S,I-CSCF

    Available

    IMS

    4G 

    VOLTE

    Volte call forward 

    Attach

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call forward 

    Authentication

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call forward 

    Security Mode

    S1AP

    S1-MME

    eNodeB

    MMEAvailable

    4G 

    VOLTE

    Volte call forward 

    Initial Context request 

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call forward 

    Detach

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte call forward 

    Context Release 

    S1AP

    S1-MME

    eNodeB

    MMEAvailable

    4G 

    VOLTE

    Volte to Volte

    MO-Calling party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    SIP

    IMS

    4G 

    VOLTE

    Volte to Volte

    MT-Called party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte to Volte

    call Hold

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte to Volte

    online charging 

    Diameter

    GxPGW

    PCRF

    Available

    4G 

    VOLTE

    Volte to Volte

    online charging 

    Diameter

    Gy

    PGW

    OCS

    Available

    4G 

    VOLTE

    Volte to Volte

    online charging 

    Diameter

    Sy

    PGW

    PCRF

    Available

    4G 

    VOLTE

    Volte to Volte

    Location info

    Diameter

    IMSICSCF

    HSS

    Available

    4G 

    VOLTE

    Volte to Volte

    User Data

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte to Volte

    Subscribe-Notifications

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte to Volte

    AAA

    Diameter

    IMSPCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte to Volte

    Authentication

    Diameter

    IMS

    PCRF

    PCSCF

    Available

    4G 

    VOLTE

    Volte to Volte

    Session-Termination

    Diameter

    IMS

    PCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte to Volte

    Authentication

    Diameter

    IMSPCRF

    PGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Spending-Limit

    Diameter

    IMS

    PCRF

    OCS

    Available

    4G 

    VOLTE

    Volte to Volte

    Accounting

    Diameter

    IMS

    PGW

    CDF

    Available

    4G 

    VOLTE

    Volte to Volte

    Credit-Control Request

    Diameter

    IMSTAS

    OCS

    Available

    4G 

    VOLTE

    Volte to Volte

    Session-Termination

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte to Volte

    AAA

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte to Volte

    Server-Assignment 

    Diameter

    IMSAAA

    HSS

    Available

    4G 

    VOLTE

    Volte to Volte

    Session Establishment

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Session Establishment

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Session modification

    GTPV2

    S8SGW

    PGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Session termination 

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Session modification

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Session termination 

    GTPV2

    S5MME

    SGW

    Available

    4G 

    VOLTE

    Volte to Volte

    Registration 

    SIP

    IMS

    UE

    P,S,I-CSCF

    Available

    Registration 

    SIP

    IMS

    4G 

    VOLTE

    Volte to Volte

    Attach

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to Volte

    Authentication

    S1AP

    S1-MME

    eNodeB

    MMEAvailable

    4G 

    VOLTE

    Volte to Volte

    Security Mode

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to Volte

    Initial Context request 

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to Volte

    Detach

    S1AP

    S1-MME

    eNodeB

    MMEAvailable

    4G 

    VOLTE

    Volte to Volte

    Context Release 

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN

    MO-Calling party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    MO-Calling party establishment 

    SIP

    IMS

    4G 

    VOLTE

    Volte to PSTN

    call Hold

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    VOLTE

    Volte to PSTN

    online charging 

    Diameter

    GxPGW

    PCRF

    Available

    4G 

    VOLTE

    Volte to PSTN

    online charging 

    Diameter

    Gy

    PGW

    OCS

    Available

    4G 

    VOLTE

    Volte to PSTN

    online charging 

    Diameter

    Sy

    PGW

    PCRF

    Available

    4G 

    VOLTE

    Volte to PSTN

    Location info

    Diameter

    IMSICSCF

    HSS

    Available

    4G 

    VOLTE

    Volte to PSTN

    User Data

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte to PSTN

    Subscribe-Notifications

    Diameter

    IMS

    TAS

    HSS

    Available

    4G 

    VOLTE

    Volte to PSTN

    AAA

    Diameter

    IMSPCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte to PSTN

    Authentication

    Diameter

    IMS

    PCRF

    PCSCF

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session-Termination

    Diameter

    IMS

    PCSCF

    PCRF

    Available

    4G 

    VOLTE

    Volte to PSTN

    Authentication

    Diameter

    IMSPCRF

    PGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Spending-Limit

    Diameter

    IMS

    PCRF

    OCS

    Available

    4G 

    VOLTE

    Volte to PSTN

    Accounting

    Diameter

    IMS

    PGW

    CDF

    Available

    4G 

    VOLTE

    Volte to PSTN

    Credit-Control Request

    Diameter

    IMSTAS

    OCS

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session-Termination

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte to PSTN

    AAA

    Diameter

    IMS

    PGW

    AAA

    Available

    4G 

    VOLTE

    Volte to PSTN

    Server-Assignment 

    Diameter

    IMSAAA

    HSS

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session Establishment

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session Establishment

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session modification

    GTPV2

    S8SGW

    PGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session termination 

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session modification

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Session termination 

    GTPV2

    S5MME

    SGW

    Available

    4G 

    VOLTE

    Volte to PSTN

    Registration 

    SIP

    IMS

    UE

    P,S,I-CSCF

    Available

    4G 

    VOLTE

    Volte to PSTN

    Attach

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN

    Authentication

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN

    Security Mode

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN

    Initial Context request 

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN

    Detach

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN

    Context Release 

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    E911

     

    Calling party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    E911

     

    Called party establishment 

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Availableestablishment 

    SIP

    IMS

    4G 

    E911

     

    Call forwarding leg

    SIP

    IMS

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    P,S,I-CSCF,MTAS,BGCF,MRFC,MGCF

    Available

    4G 

    E911

     

    online charging 

    Diameter

    GxPGW

    PCRF

    Available

    4G 

    E911

     

    online charging 

    Diameter

    Gy

    PGW

    OCS

    Available

    4G 

    E911

     

    online charging 

    Diameter

    Sy

    PGW

    PCRF

    Available

    Diameter

    Sy

    4G 

    E911

     

    Session Establishment

    GTPV2

    S5

    MME

    SGW

    Available

    4G 

    E911

     

    Session Establishment

    GTPV2

    S8

    SGW

    PGW

    Available

    4G 

    E911

     

    Registration 

    SIP

    IMS

    UE

    P,S,I-CSCF

    Available

    4G 

    E911

     

    NAS Signalling

    S1AP

    S1-MME

    enodeB

    MME

    Available

    4G 

    E911

     

    Mobile Location Protocol

    MLP

    Le/L1

    UE

    LocServerMLP

    Available

    4G 

    E911

     

    User Plane Location Protocol

    ULP

    Lup/Ua

    UE

    LocServerULP

    Available

    4G 

    E911

     

    LCS Application Protocol

    LCSAP

    SLs

    MME

    E-SMLC

    Available

    4G 

    VOLTE

    Volte to Volte

    Attach request, PDN connectivity request

    S1AP

    S1-MMEeNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN (with geolocation)

    Attach request, PDN connectivity request

    S1AP

    S1-MME

    eNodeB

    MME

    Available

    4G 

    VOLTE

    Volte to PSTN (with geolocation)

    Extended service request

    S1AP

    S1-MME

    eNodeB

    MME

    Available