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TR 22.809 (SA1) ★
Feasibility Study on support for
3GPP Voice Interworking with Enterprise IP-PBX (VINE)

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced

V11.2.0 (Wzip) 2011/10 24 p.

Rapporteur: Mr. Bomarsi, Eric

This study aims to provide use cases and requirements for the following aspects of interworking between 3GPP networks and Enterprise voice services:

Support for CS and IMS voice services interworking with IP-PBX services while at the same time maintaining full operator visibility and control of the related voice service signalling in the mobile operator's core network,
Mobile operator control of security, manageability and operation of IP-PBX interworking function,
Mobile operator control of availability of IP-PBX services to 3GPP mobile devices,
Mobility between cellular and Enterprise environments, and
Continuity when an IMS session is moved between cellular and Enterprise environments and when the IMS session is moved between mobile and fixed devices in the Enterprise environment.

Use cases and requirements from other SDOs will be considered in this study.

The following services aspects will be covered:

CS and IMS services,
Enterprise specific value-added services (e.g. "short code dialling", conferencing, transfer of sessions to a softphone on a PC), and
Interaction between services provided by the mobile operator and services provided by the Enterprise.

full Table of Contents for TR 22.809 Word version: 11.2.0

1 Scope Word-p. 7

3 Definitions and abbreviations Word-p. 8

3.1 Definitions

3.2 Abbreviations

4.1 Analysis of related standardization

4.2 Enterprise-based service control Word-p. 9

4.2.1 Introduction

4.2.2 Existing standards implementation

4.2.3 Standards gap analysis

5 Reference Model

6 Use Cases Word-p. 10

6.1 Introduction

6.2 IMS use cases Word-p. 11

6.2.1 Mobility from macro network to Enterprise

6.2.1.1 Preconditions

6.2.1.2 Service flow

6.2.2 Call transfer from 3GPP mobile device to IP-PBX device

6.2.2.1 Preconditions

6.2.2.2 Service flow

6.2.3 Call transfer from IP-PBX device to 3GPP mobile device

6.2.3.1 Preconditions

6.2.3.2 Service flow Word-p. 12

6.2.4 Mobility from Enterprise to macro network

6.2.4.1 Preconditions

6.2.4.2 Service flow

6.2.5 Short code dialling

6.2.5.1 Preconditions

6.2.5.2 Service flow

6.2.6 Parallel alerting Word-p. 13

6.2.6.1 Preconditions

6.2.6.2 Service flow

6.2.7 Media transfer

6.2.7.1 Preconditions

6.2.7.2 Service flow

6.2.8 One number

6.2.8.1 Preconditions

6.2.8.2 Service flow

6.2.9 Unified Voice Mail Word-p. 14

6.2.9.1 Preconditions

6.2.9.2 Service flow

6.3 CS use cases

6.3.1 Call transfer from 3GPP mobile device to IP-PBX device

6.3.1.1 Preconditions

6.3.1.2 Service flow

6.3.2 Call transfer from IP-PBX device to 3GPP mobile device

6.3.2.1 Preconditions

6.3.2.2 Service flow

6.3.3 Short code dialling Word-p. 15

6.3.3.1 Preconditions

6.3.3.2 Service flow

6.3.4 One number

6.3.4.1 Preconditions

6.3.4.2 Service flow

7 Potential Requirements

7A Potential Supplementary Services to support 3GPP Voice Interworking with Enterprise IP-PBX Word-p. 17

7A.2 Enterprise Dial Plan and Calling Policy

7A.2.1 Definition

7A.2.2 Description

7A.3 Individual Line Services Word-p. 18

7A.3.1 Introduction

7A.3.2 Call Transfer (Unattended, Attended & Early Attended)

7A.3.2.1 Definition

7A.3.2.2 Description

7A.3.3 Multi-party Ad-hoc Conference with Rosters

7A.3.3.1 Definition

7A.3.3.2 Description

7A.3.4 Call Forwarding Word-p. 19

7A.3.4.1 Definition

7A.3.4.2 Description

7A.3.5 Single Number Reach (SNR)

7A.3.5.1 Definition

7A.3.5.2 Description

7A.3.6 Do Not Disturb (DND) Word-p. 20

7A.3.6.1 Definition

7A.3.6.2 Description

7A.3.7 Immediate Divert (to messaging system)

7A.3.7.1 Definition

7A.3.7.2 Description

7A.3.8 Shared-line Features (remote-in-use, call-Barge)

7A.3.8.1 Definition

7A.3.8.2 Description

7A.3.9 Callback

7A.3.9.1 Definition

7A.3.9.2 Description Word-p. 21

7A.3.10 Connected Name and Number Display

7A.3.10.1 Definition

7A.3.10.2 Description

7A.3.11 Call Whisper

7A.3.11.1 Definition

7A.3.11.2 Description

7A.4 Group Line Services

7A.4.1 Introduction

7A.4.2 Enterprise Music On Hold

7A.4.2.1 Definition

7A.4.2.2 Description Word-p. 22

7A.4.3 Call Park

7A.4.3.1 Definition

7A.4.3.2 Description

7A.4.4 Call Pickup/Group Pickup

7A.4.4.1 Definition

7A.4.4.2 Description

8.1 CS Interworking for VINE

9 Conclusion Word-p. 23

A Change history Word-p. 24