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1 Ghana Telecommunications Company Limited NGN Migration: Scenario and Strategy David Mettle CTO
2 AGENDA Network Architecture: Where we are today Network Architecture: Where do we want to go? Why Telcos Should Care About NGN Ghana Telecom s Migration Strategy 2
3 WHERE WE ARE TODAY: SINGLE-SERVICE VERTICAL NETWORKS 3
4 WHERE WE ARE? PSTN PLMN (GSM) ATM IP/MPLS 4
5 Distinguishing Feature of Legacy Equipment. For legacy equipment, the intelligence for service delivery was linked rigidly to the hardware for call connection. 5
6 One Network Per Service - Challenges High CAPEX High OPEX Different subsets of technicians per technology. Different stock of spare parts per vendor. Different support contracts per equipment type. Variations in enhanced facility features. Pass Word usage between NEAX and FETEX Some features unavailable on certain switches. Customer Dissatisfaction 6
7 Examples of Scrapped Vertical (Silo) Platforms. TELEX EXCHANGE MARINE COMMUNICATONS HDX 10 (PSTN) 7
8 TELEX Telex services introduced in 1961 using step by step Strowger Switch. Strowger switch replaced by ELTEX in Telex services were stopped and hardware sold as scrap in
9 MARINE COMMUNICATIONS Ghana Telecom provided Marine Vessel to Land Communications using HF technology. With the availability of IMMARSAT services on ships, marine communications traffic virtually disappeared. Equipment built for this particular service was rendered useless. Retrain and redeploy staff. 9
10 10
11 Key Concept for the Vision of NGN DECOUPLE THE SERVICE INTELLIGENCE FROM THE HARDWARE PROVIDING CALL CONNECTION AND TRANSPORT. 11
12 WHERE DO WE WANT TO GO? TOMORROW: MULTI-SERVICE INTEGRATED NETWORK 12
13 The NGN Paradigm Shift 13
14 14
15 Value Proposition for NGN Architecture. (Why Should Telcos Care about NGN?) In the new millennium business success for public network operators requires finding new ways to add value to their transport services.. 15
16 Value Proposition for NGN Architecture. (Why Should Telcos Care about NGN?) Enabler of cost effective support for new suite of sophisticated services. Cost reduction by eliminating service specific proprietary solutions. 16
17 Value Proposition for NGN Architecture. (Why Should Telcos Care about NGN?) Reduce time to market and life cycle costs of offering new Services. Enable Telcos to deploy advanced services and thereby remain competitive 17
18 Ghana Telecom s Migration Strategy Steps to NGN. The Overall Strategy is a Gradual Replacement of old equipment as they come to the end of their useful lives. 18
19 Ghana Telecom s Migration Strategy Steps to NGN. Introduction of Network Elements with Open Interfaces & Compatible with NGN Architecture. Eg. nhlr, IPTV 19
20 Pilot for NGN Ghana Telecom 20
21 Replacement of Old Switches Small Capacity PSTN Switches are being replaced by NGN-ready Multi Service Access Nodes. Network Extension to new areas will be done by NGN access devices (MSANs and IPDSLAM) with the capability to deliver Triple Play Services. 21
22 NGN Structure for Ho Project PSTN SS7 10* E1 (North Accra) D D F UMG8900 North Accra SOFTX3000 UMS E1 CX300 FE IP MPLS CX200 UA5000 POTS(1216) ADSL2+(192) Hohoe 7E1 7E1 8E1 6E1 FE UA * E1 Ho POTS(5024)) ADSL2+(512) PRA CX200 CX200 CX200 CX200 UA5000 UA5000 UA5000 UA5000 POTS(1216) ADSL2+(96) Kpando POTS(1216) ADSL2+(96) Keta POTS(1216) ADSL2+(128) Denu-Aflao POTS(768) ADSL2+(64) Akatsi Note: The transmission bandwidth is based on the assumption that the average bandwidth for each ADSL2+ subscriber is 1M Page 22
23 Mobile Expansion The next phase of the Mobile expansion will be done using softswitch technology Fibre in the Metro will be deployed to make the access NGN-ready. 23
24 Upgrade of IPMPLS Core The existing IP/MPLS core will be upgraded for higher capacity and reliability. Metro Ethernet will be constructed in Accra to aggregate IP traffic. 24
25 THANK YOU!!! 25
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