Data Communication and Telephony Workshop

5 days
date10 - Version:1
Description
This comprehensive, hands-on technical workshop is designed to equip infrastructure professionals with the essential tools and methodologies required to diagnose, troubleshoot, and optimize modern network and telephony environments. Participants will delve into the OSI model (Layers 1-4) to establish a firm foundation for identifying physical and logical failures, covering everything from CAT6/7 cabling and optics to advanced switching and VLAN segmentation. The curriculum further explores critical IP networking protocols, including DHCP, DNS, and routing strategies, alongside a deep dive into modern VoIP technologies such as SIP, PoE, and QoS prioritization. Through advanced CLI exercises using the CMD toolbox (Ping, Tracert, Nslookup, Netstat) and real-world case studies, attendees will master a systematic "Troubleshooting Flowchart" to resolve complex connectivity issues and ensure high-performance network reliability.
Intended audience
Infrastructure Department employees
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  • The Physical and Logical Layer (Physical & Data Link)
    • The OSI Model through the Infrastructure Lens: Understanding Layers 1-4 as a basis for troubleshooting.
    • Edge Equipment: Recognizing cable types (CAT6/7), optics, and identifying physical damage.
    • Switching: How does a switch work? (MAC addresses, port learning).
    • VLANs: Logical separation at the infrastructure level – why it is critical for security and order.

  • IP Networks and Protocols (Network Layer)
    • IP Addresses: Address structure, Subnet Mask identification, and Gateway.
    • Essential Network Services: In-depth understanding of DHCP (address allocation) and DNS (name translation).
    • Basic Routing: How information knows how to exit the local network to the internet or other branches.

  • Modern Telephony (VoIP)
    • The Transition from Analog to IP: How voice turns into data packets.
    • SIP Protocol: Understanding the phone registration process with the PBX (switchboard).
    • PoE (Power over Ethernet): Supplying power to phones and endpoints through network cables.
    • QoS (Quality of Service): Prioritizing voice traffic over data to prevent call interruptions.

  • Practical Work and Management (Hands-on CLI)
    • Switch Management: Connection methods (Console, SSH) and basic "Show" commands for port status checks.
    • The CMD Toolbox: Advanced use of commands:
    • Ping & Tracert: Locating failure points in the path.
    • Ipconfig /all: Analyzing network card settings.Nslookup
    • Checking DNS server availability.
    • Netstat: Identifying active ports and communication software.
  • Providing practical tools for diagnosing and handling communication faults, understanding data flow in the corporate network, and mastering basic testing tools.
Contact Us
03-6176666
03-6176677 info@sela.co.il

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