Brice Njonga

Senior Voice Backbone Engineer at VTX Telecom
  • Claim this Profile
Contact Information
us****@****om
(386) 825-5501
Location
Greater Paris Metropolitan Region, FR

Topline Score

Topline score feature will be out soon.

Bio

Generated by
Topline AI

You need to have a working account to view this content.
Join now
You need to have a working account to view this content.
Join now

Credentials

  • MS-720: Microsoft Teams Voice Engineer
    Microsoft
    Jun, 2023
    - Oct, 2024
  • Microsoft 365 Certified: Teams Support Engineer Specialty
    Microsoft
    Sep, 2022
    - Oct, 2024
  • MiCollab 7.3 technical certification
    -
    Sep, 2017
    - Oct, 2024
  • Nupoint Unified Messaging release 8.3
    Mitel
    Sep, 2017
    - Oct, 2024
  • MiVoice Border Gateway 9.2
    Mitel
    Jul, 2017
    - Oct, 2024
  • MiVoice Business Rel 8.0 Networking, Clustering and Resiliency: Installation & Maintenance
    Mitel
    Mar, 2017
    - Oct, 2024
  • MiVoice Business Rel 7.1 Core I+M Leader-Led EMEA
    Mitel
    Jun, 2015
    - Oct, 2024
  • Ssca SIP training
    The SIP School
    Oct, 2021
    - Oct, 2024
  • SSCA Sip training
    The SIP School
    Sep, 2018
    - Oct, 2024
  • EFSET English Certificate - Score: 71/100, Proficient (CEFR C2)
    EF Education First

Experience

  • VTX Telecom
    • Switzerland
    • Telecommunications
    • 100 - 200 Employee
    • Senior Voice Backbone Engineer
      • Nov 2022 - Present

      • Maintenance and support of the VOIP backbone (Teles, Communi5, VOXEO, SBC Audiocodes Mediant 6000, Microsoft Teams…) • Support in developing the infrastructure VOIP, interface with the development/product management team on specific projects • Support to the Presales team on specific projects, design of Proof Of Concept labs et validation tests • VOIP architecture: Rollouts, upgrades, securing the network,hardening • Setting up and Operating Peer-to-Peer and Transit SIP interconnections with ITSP’s • Rollout and maintenance of systems Linux/Vmware based ( ESXi, Kamalio Proxy, Nginx Load-balancers • Validation and support of interoperability with customers VOIP equipment and solutions (SBC, 3CX,FreePBX, Asterisk,Hardphones, Softphones (PC and mobile), ATA, CTI integrations...) • Documentation creation and updates (Wiki) • Internal training of 1st line and 2nd line support teams • 3rd line support Show less

  • Hub One
    • France
    • Telecommunications
    • 300 - 400 Employee
    • Core Voice Network engineer
      • Jul 2018 - Oct 2022

      Duties• Maintenance of the equipments that make up the different the old and new Core Voice Networks. (Alcatel E10 and MGC10 public switch, IMS Class 4 networkand class 5)• Migration of 60,000 lines (analog lines, T0, T2, TOIP) from our former core VOICE network made up of E10 and MGC10 Softswitches to a new generation IMS network• In charge of routing incoming and outgoing calls traffic, to and from voice Service Providers interconnected to Hubone Network• Maintenance and software upgrade of the various nodes that make up Hubone IMS network (SBC Oracle 4600, Media Gateway Italtel Netmatch-M, KeyMile MSAN Gateway…)• Management of the alarming of the various equipments of the Core Voice networks• Upgrade, configuration, administration, architecture design involving Oracle’s SBC 4600• VOIP Architecture design of interconnects with other ITSP’S• Design, integration and tests of Microsoft TEAMS (phone system, Direct routing…)• Drafting procedures, operating documentation, validation tests• Faults diagnosis and analysis with monitoring platforms such as Netscout, OCOM (formely known as Palladion), Wireshark.• Analysis and diagnosis of VOIP network threats and frauds (Elastic, Splunk)• validation tests of new equipments or new elements integrated into the core network• 3rd line Technical Support• WDM, SDH, Centrex IP Network Incident Management Show less

    • Voice and Unified Communications Support Engineer
      • Nov 2014 - Jul 2018

      Duties• Managing 2nd line and 3rd line incidents related to IP telephony, unified communications and legacy voice (CUCM 9.0,Cisco Unity, Mitel 6.0, MVB 7 to 8, MiCollab server 7.0,NuPoint’s Unified messaging server , Alcatel’s MGC10 and E10 Softswitch , Oracle’s SBC, Alcatel’s OXO and OXE…)• Technical support on LAN equipment deployed at customers sites ( Cisco and One access routers ,Cisco’s Voice Gateways, Cisco and HP switches, Audiocode’s gateways, Mitel’s IP sets, Polycom’s and Mitel’s Conference phones, Mitel’s DECT systems….)• Trace calls analysis( SIP protocol, ISUP, MEGACO…)• Writing of technical procedures• Setting up test labs• Working in collaboration with other technical teams (validation tests with the engineering team, deployments at sites with the deployment team…) Show less

  • SPIE ICS
    • France
    • IT Services and IT Consulting
    • 700 & Above Employee
    • IP Telephony Engineer
      • Dec 2013 - Jul 2014

      October 2013 – Till date IP Telephony Engineer – SPIE ( through AFD Technology, consultant agency)- Paris , France Worked as a IP telephony engineer, deploying, maintening and upgrading VOIP telephony network for different companies in the Paris region. Duties • Administration of IP Telephony equipments ( Cisco Call Manager Express 7.1 & CME 8.5, Cisco CUBE SBC's ,Voice gateway, IP phones, Cisco switchs) • Deploymnent, configuration of solutions to manage VOIP telephony, voicemail( Cisco Unified Express 7.1), unified messaging for corporations. • Maintenance of Cisco’s VOIP telephony ( upgrades of voice networks previously deployed) • 2nd line and 3rd line telephony support • Audit and expertise of Cisco VOIP Show less

  • Completel
    • France
    • Telecommunications
    • 100 - 200 Employee
    • Voice network Engineer
      • Aug 2011 - Dec 2013

      • Supervision of the field engineers to install OneAccess routers (OA 80, 150,200,400), Rad ETH 102, Nortel’s Media Gateway MG3200.• Configuration of OneAccess routers, Swag Alcatel, Nortel’s CS2K and DMS voice switches.• Setup of differents links such as ADSL, SDSL, TDSL, LPT and fiber.• NGN links provisonning on Nortel’s CS2K, TDM links on Nortel’s DMS• Creation of E1 links on Nortel’s PVG and implementation of Nortel’s IEMS toll for the provisioning of CS2K’s gateway controllers.• Routing of the numbers ported and numbers owned by the telecom provider.• Mapping of the numbers requiring an enhanced management of phone calls.• Numbers portability• Second line customer support (Troubleshooting/investigation/ resolution)• Management of networks upgrade requests ( routing changes...) Show less

    • Data network Engineer
      • Jan 2010 - Aug 2011

      • Supervision of the field engineers on site to install routers such as Cisco 18XX, 87X, 2811, Cisco Asr, One Access 180, Rad eth-102-202, Pandatel• Configuration of backbone routers such as Redback (SE800, SE400, SE100), Cisco 7206 , and Alcatel Switches (OS6850) et Riverstone RS320• Remote activation or migration of Adsl, Sdsl, E1 links• Monitoring of activated sites working on VPN MPLS, Internet and Lan-to-Lan networks• Opening/Management of troubleshooting tickets• Second line customer support (Troubleshooting/investigation/ resolution)• Management of networks upgrade requests ( debit rate upgrades, routing changes...) Show less

Education

  • Westminster University
    Master of Science (MSc), Mobile, Personanl and Satellite Communication
    2007 - 2008
  • Université Paris - Val-de-Marne (Paris XII)
    Licence de Sciences de l’ingénieurs -BEng (Hons) Electronic & Communications Engineering :obtained, Electrical, Electronics and Communications Engineering
    2006 - 2007
  • Université Paris - Val-de-Marne (Paris XII)
    DUT de Génie Electrique et Informatique Industriel- Two-years degree of Electrical and Computing t, Electrical and Electronics Engineering
    2003 - 2006

Community

You need to have a working account to view this content. Click here to join now