“Freddy is undoubtedly one of the key thought leaders in the East African telecommunications industry that is leading the charge for East Africa, and specifically Tanzania, in becoming the next major connectivity hub for Africa. Having worked directly with him for many years, Freddy has continuously demonstrated a remarkable ability to call industry trends and investments well before the market. This is largely owing to his appetite and drive to learn new technologies, global trends and best practices, as well as taking on large and very ambitious projects for the companies he has worked for. Freddy was instrumental in developing the ICT foundation for future looking enterprise and wholesale services in Tanzania, and led the development and commercialization of both first to market fiber and tier 3 data center assets, which has now formed the bed-rock of Tanzania's wider connectivity ambitions.”
About
With over 20 years of experience in the telecom and ICT sector, I am a seasoned…
Activity
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Any Tanzanian business looking to provide advanced salary to their employees in January, we are releasing a new product this month via AzamPesa with…
Any Tanzanian business looking to provide advanced salary to their employees in January, we are releasing a new product this month via AzamPesa with…
Liked by Freddy Mrema
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Six suspects were recently arraigned before the Kinondoni Resident Magistrate's Court, facing 68 charges, including causing the Tanzania Revenue…
Six suspects were recently arraigned before the Kinondoni Resident Magistrate's Court, facing 68 charges, including causing the Tanzania Revenue…
Liked by Freddy Mrema
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I’ll make this quick. Most of us are aware of AI—some are sceptical about it, some love it, and others don’t fully understand what it does or how it…
I’ll make this quick. Most of us are aware of AI—some are sceptical about it, some love it, and others don’t fully understand what it does or how it…
Liked by Freddy Mrema
Experience
Education
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MZUMBE UNIVERSITY
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Activities and Societies: BSI TRAINING ACADEMY
ISO 22301:2012 BUSINESS CONTINUITY MANAGEMENT SYSTEMS: REQUIREMENTS
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Activities and Societies: BSI TRAINING ACADEMY
ISO/IEC 27001:2013 Information Security Management Systems: Internal Auditor
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Activities and Societies: BSI TRAINING ACADEMY
ISO/IEC 27001:2013 Information Security Management Systems: Lead Implementer
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Activities and Societies: BSI TRAINING ACADEMY
ISO/IEC 27001:2013 Information Security Management Systems: Requirements Course
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Activities and Societies: Scope and history Design thinking Reliability engineering Business needs analysis Site selection Building structures & spaces Computer rooms & ICT spaces Cooling subsystems Power subsystems Security subsystems BMS subsystems Network subsystems Compute subsystems Storage subsystems Administration subsystems Final project completion DC Selling strategy
This course encompasses the basic principles of data center design, tracking its history from the early days of the mainframe to the modern enterprise data center in its many forms and the future. It has modules on all the major sub-systems of a mission critical facility and their inter dependencies, including power, cooling, compute and network.
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Activities and Societies: 35 contact hours of formal Project Management training.
1: Project Scope Management
2: Project Time Management
3: Project Cost Management
4: Project Quality Management
5: Project Human Resource Management
6: Project Communications Management
7. Project Risk Management
8: Project Procurement Management
9: Project Integration Management
10: Project Management Tools and Techniques -
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1:Overview of Wimax technology
2: Hardware platform and antenna types
3: Services and various applications
4: Antenna modes and interference control
5: Configuration and sector management
6: Operations and maintenance principles
7. Capacity management of point to point networks, Winlink 1000, Radwin 2000
8: Capacity management of point to multipoint networks Radwin 5000
9: Link budget design and planning tools
10: System troubleshooting and spectrum analysis -
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1: CDMA 2000 System evolution and structure.
2: System structure and Hardware platform of PDSN
3: TCP/IP Principle and IP Address regulations
4: PDSN related interfaces and protocol
5: PDSN signaling and traffic flow
6: PDSN data configurations and services
7. AAA principle and basic services configurations
8: System tool and typical trouble shooting
9: Multi ISP Principle and configurations
10: User control and management system. -
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1: CDMA Technology Overview, Antenna and feeder structure.
2: Principle and implementation of CDMA Spread Spectrum
3: Principle and implementation of CDMA 2000 1X Channel structure
4: Principle and implementation of CDMA 2000 EVDO System
5: Principle and Hardware structure of ZXC10 BSCB
6: Principle and Hardware structure of ZXSDR B8200 C100
7. Principle and Hardware structure of ZXSDR B8841 C804
8: ZXC10 BSSB overview –Ap interface and A interface
9: ZXC10 BSSB…1: CDMA Technology Overview, Antenna and feeder structure.
2: Principle and implementation of CDMA Spread Spectrum
3: Principle and implementation of CDMA 2000 1X Channel structure
4: Principle and implementation of CDMA 2000 EVDO System
5: Principle and Hardware structure of ZXC10 BSCB
6: Principle and Hardware structure of ZXSDR B8200 C100
7. Principle and Hardware structure of ZXSDR B8841 C804
8: ZXC10 BSSB overview –Ap interface and A interface
9: ZXC10 BSSB integration with MGW and MSCe
10: Routine maintenance and troubleshooting -
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1: Overview of 3G Core network
2: Universal Hardware platform of ZXC 3GCN
3: System structure of ZXC10 MGW, HLRe, MSCe
4: Networking Mode and System design.
5: No.7 signaling system SS7.
6: Digit Analysis DAS
7. SCCP Protocol and principle
8: 2G Call Services flow
9: MAP Services flow
10: Trunk data configurations
11: H.248, SIP, SIGTRAN and service flow of LMDS
12. Billing system of 3G Core Network.
13. Alarm management and report analysis
14. Routine…1: Overview of 3G Core network
2: Universal Hardware platform of ZXC 3GCN
3: System structure of ZXC10 MGW, HLRe, MSCe
4: Networking Mode and System design.
5: No.7 signaling system SS7.
6: Digit Analysis DAS
7. SCCP Protocol and principle
8: 2G Call Services flow
9: MAP Services flow
10: Trunk data configurations
11: H.248, SIP, SIGTRAN and service flow of LMDS
12. Billing system of 3G Core Network.
13. Alarm management and report analysis
14. Routine maintenance and system troubleshooting. -
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1: Microwave system design
2: Digital Microwave link Engineering
3: Microwave network planning
4: Efficient Carrier Ethernet transport
5: Design consideration for Ethernet over Microwave
6: Network Synchronization -
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1: Networking Fundamentals
2: Network Media and Cable testing
3: Ethernet Switching Fundamentals
4: TCP/IP Protocol suite
5: IP Addressing and Routing Protocols
6: WAN and Routers configurations
7: Access Control Lists
8: OSPF and EIGRP Configurations
9: Virtual LANS and VLAN Trunking Protocols
10: WAN Technologies -
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FUNDAMENTALS OF TELETRAFFIC ENGINEERING
1: Introduction to Teletraffic Engineering
2: Traffic Concerpt and Quality of Service
3: Probability Theory and Statistics
4: The poison process
5: Data Traffic and Classifications
6: Traffic Overflow Theory
7: Traffic Matrix Computation
8: IP Network Quality of Service
10: Traffic forecasting and Traffic Measurements
CDMA TELETRAFFIC ENGINEERING
1: Introduction to CDMA Fundamentals
2: CDMA Design Engineering…FUNDAMENTALS OF TELETRAFFIC ENGINEERING
1: Introduction to Teletraffic Engineering
2: Traffic Concerpt and Quality of Service
3: Probability Theory and Statistics
4: The poison process
5: Data Traffic and Classifications
6: Traffic Overflow Theory
7: Traffic Matrix Computation
8: IP Network Quality of Service
10: Traffic forecasting and Traffic Measurements
CDMA TELETRAFFIC ENGINEERING
1: Introduction to CDMA Fundamentals
2: CDMA Design Engineering issues
3: Transmit power control
4: Capacity planning in CDMA
5: CDMA Cell breathing
6: CDMA Broadband capacity and coverage
7: Introduction to WCDMA -
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1: DSLAM Equipments
2: ATM principles
3: Basic conception of ATM
4: Service and Protocol stack of ATM
5: Interface of ATM network
6: IP access equipment
7. System structure and working principle
8: Networking solutions
9: Introduction to Solaris
10: Introduction to Sybase
11: Introduction to SNMP
Projects
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VOIP GATEWAY INTERCONNECTION WITH THE 3G CORE NETWORK
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Built an E1 Link for SS7 signalling between the Vocaltech Voip gateway and 3G Core network to allow CDMA mobile users to make cheap and high quality international calls
Other creators -
DIRECT INTERCONNECTION BETWEEN SASATEL AND VODACOM
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Build a PDH MW link to Vodacom
Build a signalling link to Vodacom MGW/MSCe to allow direct traffic between Sasatel and VODACOMOther creators -
SASATEL COVERAGE EXPANSION-BUILD 3 BTSes
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Built 3 new CDMA BTS in Dar es salaam to improve coverage
Interconnects the new sites with the existing Microwave ring SDH.
The site connects to the SDH ring via PDH linksOther creators -
DESIGN, INSTALLATION, INTERGRATION AND TESTING CDMA 3G CORE NETWORK
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DESIGN, INSTALLATION, INTERGRATION AND TESTING CDMA CORE NETWORK
Worked with ZTE Vendor to do the following activities:-
Design, build, central equipment room layout and install cable trays for cables
Installed the racks for MGW,MSCe,HLRe,PDSN,AAA,BSC and one BTS
Install the various software versions on different severs of Core network
Interconnected the core network nodes, tested the first on net call successfully
• Installation acceptance test
• Configuration acceptance…DESIGN, INSTALLATION, INTERGRATION AND TESTING CDMA CORE NETWORK
Worked with ZTE Vendor to do the following activities:-
Design, build, central equipment room layout and install cable trays for cables
Installed the racks for MGW,MSCe,HLRe,PDSN,AAA,BSC and one BTS
Install the various software versions on different severs of Core network
Interconnected the core network nodes, tested the first on net call successfully
• Installation acceptance test
• Configuration acceptance test
• Reliability acceptance Test
• Operation acceptance Test
• Basic and Supplementary services acceptance Tests
Other creatorsSee project -
DIRECT INTERCONNECTION BETWEEN SASATEL AND TIGO
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Build a Microwave link between the two networks to enable the two Switches to communicate directly via their Media gateways on both sides
Other creatorsSee project -
IST PBX
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Build an E1 Link to International School of Tanganyika to allow IST staff make Local and International call from their PBX via MGW/MSCe of Sasatel.
Other creatorsSee project -
NATIONAL/INTERNATIONAL VOICE TRANSIT INTERCONNECTION BETWEEN SASATEL AND TTCL
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To be able to call/receive calls from all other operators in Tanzania by using the direct link to TTCL.
Other creatorsSee project -
MULTI-SERVICES SWITCHING NODES (MSAN)
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To replacing all old switches(Legacy switches) with new and modern Multi-Services switching Nodes (MSAN) and shall be integrated in the NGN core network for offering multi-Media services (Voice, data and Video).
Other creatorsSee project -
MULTSERVICE ACESS NODES TO DSM CORPARATE CUSTOMERS
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To provide a common platform to carry versatile broadband services, narrowband services, as well as leased line services. The Multi-Service Access Node shall support triple play services (i.e. broadband data, video & voice) in the single platform by using Optical Fiber to the building (Cabinet) instead of Copper wires
Other creatorsSee project -
ADSL PROJECT ZANZIBAR, PEMBA, MTWARA, LINDI
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Installation and configuration of NetEngine40 Universal Switching Router
Installation and configuration of Digital Subscriber Line Access Multiplexer(DSLAM)
Installation and configuration of Multiservice Access Nodes (MSAN)
Other creatorsSee project -
TANROADS WAN/LAN PROJECT (35 BRANCHES, OFFICES&WEIGHBRIDGES
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As technical manager during implementation and improving
Installation, Configuration and commissioning of LAN/WAN of TANROADS, using various technologies (ADSL,Leased line and WLL)
To interconnects all the branches with Tanroads HQ at Dar es SalaamOther creatorsSee project
Languages
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Swahili
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English
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