sd roamingreplicator v2.3

7/30/2019 SD RoamingReplicator v2.3

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Version 9.30.2012

Established in 1994, EDCH provides a complete solution to mobile operators for roaming facilitiesto be provided to their customers. EDCH is the only Data Clearing House based in the Middle East

and is successfully serving many leading operators in Middle East, Africa, Asia and Europe.

EDCH offers comprehensive roaming solutions specifically Data Clearing, Financial Clearing,

Revenue Assurance, Value Added Services, Mobile Money Hub and other customized solutions.

To know more about EDCH, visit our website at www.edch.com.


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Version 9.30.2012 Page 2 of 24

E D C H H u b S e r v i c e s R o a m i n g R e p l i c a t o r

Table of Contents

1.Introduction ............................................................................................................................ 6

1.1.Service Description............................................................................................................. 8

1.1.1 Logistics for the Sponsor Network................................................................................... 8

1.1.2 Logistics for the Sponsored Network............................................................................... 8

1.1.3 The Roaming Replicator configuration overview ............................................................. 9

1.1.4 RR mappings ................................................................................................................... 9

1.1.5 Foreign Address mappings ............................................................................................. 10

1.1.6 Roaming Replicator scenarios ........................................................................................ 11

1.2. Reports .............................................................................................................................. 12

1.3. Billing Process ................................................................................................................... 12

1.1.7 Roaming Replicator Billing Process ................................................................................ 12

1.1.8 Outbound Roaming Billing Process................................................................................. 13

1.1.9 Inbound Roaming Billing Process ................................................................................... 14

2.Implementation ...................................................................................................................... 15

3.Client support ........................................................................................................................ 15

4.Related Services ...................................................................................................................Error!Bookmark not defined.

5.Document Reference............................................................................................................. 16

6.Glossary ................................................................................................................................ 16

7.Appendix Roaming Scenarios ............................................................................................ 17

7.1. Appendix A - Inbound Roamer registration / location update ........................................... 17

7.2. Appendix B - MT Call to an In-Roamer in Sponsored Network ......................................... 18

7.3. Appendix C - MT SMS to an In-Roamer in Sponsored Network ....................................... 18

7.4. Appendix D - MO SMS by a non-roaming partner subscriber Roaming in Sponsored network

............................................................................................................................................. 197.5. Appendix E - Inbound Roamer GPRS location update ..................................................... 20

7.6. Appendix F - MO Call by Prepaid Inbound Roamer .......................................................... 20

7.7. Appendix G - Outbound Roamer registration / location update ........................................ 21

7.8. Appendix H - MT Call to a Sponsored Network subscriber Roaming in non-partner network (UK)............................................................................................................................................. 21

7.9 Appendix I - MT SMS to a Sponsored Network subscriber Roaming in non-roaming partner network............................................................................................................................................. 22

7.10 Appendix J - MO SMS by a Sponsored Network subscriber Roaming in non-roaming partnernetwork ..................................................................................................................................... 23

7.11 Appendix K - Outbound Roamer GPRS location update ................................................. 23


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7.12 Appendix L - MO Call by Prepaid Outbound Roamer ...................................................... 24


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International roaming has transformed the mobile telephony landscape over

the past few years. Business travelers are willing to pay a premium for the

convenience of being accessible wherever they are, making roaming a

lucrative business for operators. However, a new mobile operator faces

significant obstacles and delays in exploiting this opportunity as the process

of establishing bilateral roaming partnerships all over the world can take

several months. This delays the inflow of revenues and also delays the

rollout of roaming services for the high-end business traveler segment of the

subscriber base. Even an existing mobile operator must again go through the

time-consuming negotiation and testing phases when launching new services

like GPRS, CAMEL or 3G roaming, even if it has few hundreds of GSM

roaming agreements.

The Roaming Replicator is designed to prioritize and accelerate the process

of launching roaming services for an operator. An operator (client) can

leverage the strong roaming relationships and existing roaming infrastructure

from Etisalat, which serves as a sponsor operator (or roaming hub), to offer

lucrative outbound roaming services to its subscribers and to serve the

inbound roamers from the roaming partners of the hub.

EDCH offers complete multilateral roaming services, a faster and reliable

way to implement and manage the large number of roaming service

relationships.

A single agreement with EDCH enables you to cover the world through:

Access to more than 500 GSM/SMS operators in 185 countries.

Access to more than 300 GPRS operators in more than 150 countries.

Access to more than 200 CAMEL operators in more than 100 countries.

Access to more than 100 3G operators in more than 70 countries.

Flexible pricing scheme. 24/7 customer technical support.

Emirates Data Clearing HouseP.O. Box 17500, Dubai - UAE

[email protected]

Tel: +971 2 499 9444Fax: +971 2 635 4663


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Roaming Replicator is an instant roaming solution that facilitates operators to

launch or extend their roaming agreements across many operators

worldwide. It is a complete end-to-end managed solution. New services can

be quickly launched for roamers (e.g. GPRS, 3G), ensuring competitive

advantage and reduced subscriber churn.


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1. INTRODUCTION

EDCH offers a fully managed service model in conjunction with Etisalat who acts as the

hub, by extending roaming relationships to new operators that join the hub. EDCH

enables billing and clearing process (fully compliant to BARG BA.21 PRD), IREG testing,

fraud control and other roaming departmental functionalities for the client operator.

The Roaming Replicator is a SS7/MAP node located in the Sponsor Network with full

SCCP capability.

Inbound Roaming

The Roaming Replicator makes the Foreign Network think that its subscriber is

roaming in the Sponsor Network

Figure 1. Inbound Roaming via the Roaming Replicator

The Roaming Replicator makes the Foreign Network think that the Sponsor

Network subscriber is roaming in its network


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Figure 2. Outbound Roaming via the Roaming Replicator

Full international roaming services can be offered to subscribers from Day 1.

The Roaming Replicator enables operators to reuse their existing roaming agreements

when they acquire new network licenses in new regions. Intelligently handles all roaming

scenarios both within the operator regions and beyond it. The benefits include:

Retention of roamers within group/preferred networks leading to reduced

revenue loss.

Guarantee of familiar services of visited preferred/group networks leading to

increased stickiness.

Huge savings from day one for the new operator.


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1.1. SERVICE DESCRIPTION

The Roaming Replicator overall strategy is to provide the Sponsored Networksubscribers with special SIM cards enabling them to use a Sponsor Network IMSI when

roaming. To describe the process how the service works, initially an SS7-capable

Roaming Replicator box will be installed in the Sponsor Network. It will force all roaming

traffic of the Sponsored Network (except direct roaming) through the Roaming

Replicator. The Roaming Replicator shall change the Signaling Connection Control Part

(SCCP) addresses of the Sponsored network elements to the Sponsor Network

addresses. The Roaming Replicator also changes SCCP addresses of foreign networks

to Sponsor Network addresses, along with selected Mobile Application Part (MAP) fields

in the messages (e.g. IMSI, MSC Address, VLR address, gsmSCF address etc.).

The Roaming Replicator does not change MSISDN and MSRN, as a result, voice traffic

goes directly between Sponsored Network and the Foreign Network. The Roaming

Replicator functions as a signaling relay and it will not respond to any message.

1.1.1 Logistics for the Sponsor Network

Logistics for the Sponsor Network require reserving a Global Title (GT) for Roaming

Replicator corresponding to each network element in the Sponsored Network. Then

reserving one or more GTs (as needed) is required for the Roaming Replicator for

foreign address mapping. As long is provided SS7 connectivity, signaling point code etc.

for the Roaming Replicator, then E.164 route is set to the Roaming Replicator for

messages having Roaming Replicator address.

1.1.2 Logistics for the Sponsored Network

The Sponsored Network is required to set up IMSI analysis in all VLRs of the Sponsored

Network for all the roaming partners of the Sponsor Network, and then follows Mobile

Global Title (MGT) of Roaming Replicator instead of foreign Country Code - National

Destination Code (CC-NDC) as in direct roaming.

Co-existence with

bilateral agreements

Roaming through theRoaming Replicatorcan be enabledselectively for somenetworks, inconjunction withexisting bilateralroaming agreements.


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All messages are routed with CC-NDC of non partner networks to Client Node without

changing Global Title digits, SSN, TT and NP.

1.1.3 The Roaming Replicator configuration

overview

To configure the Roaming Replicator requires following the process of Roaming

Replicator mappings and the foreign address mappings.

1.1.4 RR mappings

The Roaming Replicator (RR) mappings process is as follows:

RR maintains IMSI range mapping [Sponsor Sponsored IMSI range]

RR maintains mapping of Virtual RR address and sponsored network element

address

RR maintains GT pool to map foreign addresses

RR maintains E.212 to E.214 translation table for RP of Sponsor network

RR maintains GT pool per CAMEL phase supported at Sponsor

RR maintains CC-NDC table of Roaming partners of Sponsor with which it has

CAMEL agreement.

A table describing the Real Sponsored Network IMSI Virtual Sponsor Network IMSI

Mapping and the Sponsored Network Elements GT RR GT mapping are presented

below.

Sr. No. Real IMSI Virtual IMSI

1 1020-xxxxxx 1020-xxxxxx






Table 1. Real Sponsored Network IMSI Virtual Sponsor Network IMSI Mapping


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Table 2. Sponsored Network Elements GT RR GT mapping

1.1.5 Foreign Address mappings

The Foreign address mappings process is as follows:

RR allocates a few GTs for foreign address mapping

If GT is of 10 digits then 10,000 GTs can be created from one else 8-10 GTs are

required to create dummy GT pool to map international network entities.

E.g if GT is xxxx the RR will create a pool of GTs as follows xxxx 00000 to xxxx 99999

If addresses are used up, new GT can be added

SNMP trap sent when 80% GTs used up

Foreign Address Mappings (Dynamic) examples are:

Sr.No.

NElement

Sponsored Network GT RR GT

1 MSC1 9101100 1000000

2 MSC2 9121100 1000001

3 MSC3 9141100 1000002

4 MSC4 9161100 1000003

5 MSC5 9181100 1000004

6 MSC6 9201100 1000005

7 MSC7 9221100 1000006

8 HLR1 9180000 1000010

9 HLR2 9190000 1000011

10 OCSAC1 9600000 1000020

11 SMSC1 9010000 1000030

12 MMSC1 9441000 1000040

13 SGSN1 9402000 1000050

14 VMS1 9001200 1000060


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Sr.No.

N Element Foreign GT RR GT

1 Vodafone Netherlands HLR 31-654-0964000 10000702

2 Vodafone Netherlands SMSC 31-654-0881004 10000703

3 Vodafone UK HLR 44-385-016406 10000704

4 Vodafone UK SMSC 44-778-5011300 10000705

5 Vodafone UK SMSC 44-778-5013988 10000708

6 Orange France HLR 33-689-002900 10000709

7 Vodafone D2 HLR 49-172-0022596 100007010

8 Orange France SMSC 33-689-004000 100007013



11 Vodafone Germany HLR 49-172-0000296 100007016

12 Vodafone Germany SMSC 49-172-2270441 100007017



1.1.6 Roaming Replicator scenarios

Roaming replicator puts into play several scenarios for Inbound and Outbound roaming.These scenarios include:

Location Update

MT Call

MO SMS

MT SMS

MO Call (Camel only)

GPRS Location Update

These scenarios are presented with detailed diagrams in the Annexure of this document.

Roaming Replicator is fully compliant with GSMA IR.80 PRD for the Open ConnectivityRoaming Hub Model.


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1.2. REPORTS

The Roaming Replicator generates useful statistics and reports for operations staff andmanagement. In addition, EDCH fulfills the Billing process as described in section 2.3.

1.3. BILLING PROCESS

The standard GSM Roaming Billing Process covers Outbound and Inbound roamingscenarios:

1) Outbound Roaming Customers traveling out to international locations2) Inbound Roaming Customers traveling into the network from foreign networks

The TAP files are exchanged through Data Clearing houses of GSM operators.

Figure 3. Billing Process

1.1.7 Roaming Replicator Billing Process

The Roaming Replicator billing process is categorized in Outbound and InboundRoaming.


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1.1.8 Outbound Roaming Billing Process

The Outbound Roaming billing process is described below in Figure 4.

Figure 4. RR Outbound Billing process

For Outbound Roaming, customers traveling out to international locations will use dual

IMSI SIM card. Roaming IMSI will have identity of the sponsoring network. TAP files are

exchanged through the Data Clearing house of the Host Network.


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1.1.9 Inbound Roaming Billing Process

For Inbound Roaming, customers are traveling into the network from the foreign

networks and TAP files are exchanged through the Data Clearing house of Host

Network. The billing process for Inbound Roaming is described in Figure 5.

Figure 5. RR Inbound Roaming Billing Process


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2. IMPLEMENTATION

The Implementation of the Roaming Replicator requires installing the RoamingReplicator box, then configure the Sponsor and the Sponsored network prior to

production. Such Logistics include Roaming Replicator mappings and the foreign

address mappings to be carried over in the Sponsor and the Sponsored network. The

timelines are mutually agreed between the client and EDCH prior the implementation

start.

3. CLIENT SUPPORT

EDCH offers 24/7 client support managed by highly dedicated employees specialized in

supporting the Roaming Replicator.

Emirates Data

Clearing HouseP.O. Box 17500,Dubai - UAE

[email protected]

Tel: +971 2 499 9444Fax: +971 2 635 4663


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4. DOCUMENT REFERENCE

Document Description

GSMA IR.80 PRD Open Connectivity Roaming Hub Model

5. GLOSSARY

Acronym Description

GT Global TitleMAP Mobile Application PartMGT Mobile Global TitleSCCP Signaling Connection Control PartRR Roaming replicator


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6.APPENDIX ROAMINGSCENARIOS Roaming Scenarios (Outbound, Inbound)

Location Update MT Call MO SMS MT SMS MO Call (Camel only) GPRS Location Update

6.1.APPENDIX A - INBOUND ROAMERREGISTRATION / LOCATION UPDATE


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6.2.APPENDIX B - MT CALL TO AN IN-ROAMER INSPONSORED NETWORK

6.3.APPENDIX C - MT SMS TO AN IN-ROAMER IN

SPONSORED NETWORK


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6.4.APPENDIX D - MO SMS BY A NON-ROAMINGPARTNER SUBSCRIBER ROAMING IN

SPONSORED NETWORK


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6.5.APPENDIX E - INBOUND ROAMER GPRSLOCATION UPDATE

6.6.APPENDIX F - MO CALL BY PREPAIDINBOUND ROAMER


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6.7.APPENDIX G - OUTBOUND ROAMERREGISTRATION / LOCATION UPDATE

6.8.APPENDIX H - MT CALL TO A SPONSOREDNETWORK SUBSCRIBER ROAMING IN NON-

PARTNER NETWORK (UK)


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6.9.APPENDIX I - MT SMS TO A SPONSOREDNETWORK SUBSCRIBER ROAMING IN NON-

ROAMING PARTNER NETWORK


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6.10. APPENDIX J - MO SMS BY ASPONSORED NETWORK SUBSCRIBERROAMING IN NON-ROAMING PARTNER

NETWORK

6.11. APPENDIX K - OUTBOUND ROAMER

GPRS LOCATION UPDATE


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6.12. APPENDIX L - MO CALL BY PREPAIDOUTBOUND ROAMER

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