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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

Call Flow

Supported Procedures

Protocols

Interface

Network Elements A

Network Elements B

Status

4G-5G NSA

Connectivity 

 

Attach

S1AP

S1-MME

eNodeB

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-MME

eNodeB

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

S5

SGW

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-MME

eNodeB

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

S11

MME

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-MME

eNodeB

MME

Available

4G-5G NSA

Connectivity 

 

Registration 

SIP

IMS

UE

P,S,I-CSCF

Available

5G SA

Connectivity 

 

Service Registration

HTTP2

Nsmf

SMF

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

Nsmf

SMF

UDM

Available

5G SA

Connectivity 

 

BroadForward Binding

HTTP2

Nbsf

BSF

PCF

Available

5G SA

Connectivity 

 

Converged charging 

HTTP2

Nchf

CHF

PCF

Available

5G SA

Connectivity 

 

Converged charging 

HTTP2

Nchf

CHF

SMF

Available

5G SA

Connectivity 

 

Policy control 

HTTP2

Nnrf

NRF 

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

N4

SMF

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

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

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

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

Gx

PGW

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

IMS

ICSCF

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

IMS

PCSCF

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

IMS

PCRF

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

IMS

TAS

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

IMS

AAA

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

S8

SGW

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

S5

MME

SGW

Available

4G 

VOLTE

Volte call conference

Registration 

SIP

IMS

UE

P,S,I-CSCF

Available

4G 

VOLTE

Volte call conference

Attach

S1AP

S1-MME

eNodeB

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-MME

eNodeB

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

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

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

Gx

PGW

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

IMS

ICSCF

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

IMS

PCSCF

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

IMS

PCRF

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

IMS

TAS

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

IMS

AAA

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

S8

SGW

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

S5

MME

SGW

Available

4G 

VOLTE

Volte call forward 

Registration 

SIP

IMS

UE

P,S,I-CSCF

Available

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

MME

Available

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

MME

Available

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

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

Gx

PGW

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

IMS

ICSCF

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

IMS

PCSCF

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

IMS

PCRF

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

IMS

TAS

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

IMS

AAA

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

S8

SGW

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

S5

MME

SGW

Available

4G 

VOLTE

Volte to Volte

Registration 

SIP

IMS

UE

P,S,I-CSCF

Available

4G 

VOLTE

Volte to Volte

Attach

S1AP

S1-MME

eNodeB

MME

Available

4G 

VOLTE

Volte to Volte

Authentication

S1AP

S1-MME

eNodeB

MME

Available

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

MME

Available

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

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

Gx

PGW

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

IMS

ICSCF

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

IMS

PCSCF

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

IMS

PCRF

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

IMS

TAS

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

IMS

AAA

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

S8

SGW

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

S5

MME

SGW

Available

4G 

VOLTE

Volte to PSTN

Registration 

SIP

IMS

UE

P,S,I-CSCF

Available

4G 

VOLTE

Volte to PSTN

Attach

S1AP

S1-MME

eNodeB

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-MME

eNodeB

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

Available

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

Gx

PGW

PCRF

Available

4G 

E911

 

online charging 

Diameter

Gy

PGW

OCS

Available

4G 

E911

 

online charging 

Diameter

Sy

PGW

PCRF

Available

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-MME

eNodeB

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