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PBX & VoIP Telephony Systems

intermediate 30 hours 3 modules 9 lessons 3 assessments Final exam 4 practical tasks Certificate valid 2 years

About this course

Install, configure, and support business telephone systems: PBX architectures, extensions and call routing, SIP and RTP, trunks, codecs, QoS for voice, emergency calling, and structured voice troubleshooting.

What you will be able to do

  • Compare analogue, digital, IP, hosted, and hybrid PBX architectures
  • Design extension plans, ring groups, queues, IVRs, and time-based routing
  • Explain SIP signalling and RTP media, and configure SIP trunks securely
  • Choose codecs and calculate voice bandwidth
  • Prepare a network for voice with VLANs, PoE, and QoS
  • Troubleshoot one-way audio, registration failures, and poor call quality

Curriculum

225 min of reading
  • 1
    SIP signalling and RTP media
    30 min
  • 2
    SIP trunks and security
    25 min
  • 3
    Codecs and bandwidth
    25 min
  • Q
    Module assessment: VoIP & SIP
    5 questions · pass 80%
  • 1
    Preparing the network for voice
    25 min
  • 2
    Provisioning and administration
    20 min
  • 3
    Troubleshooting voice problems
    30 min
  • Q
    Module assessment: Installation, Administration & Troubleshooting
    5 questions · pass 80%

Final exam

20 questions including field scenarios and image questions · 30 minutes · pass mark 80%. Unlocks when every lesson and module assessment is complete.

Locked

Practical sign-off

Hands-on tasks a supervisor must watch you complete and sign off before your certificate is issued.

  • 1

    Provision an IP phone and DECT handset to an extension

    Auto-provisioning, voice VLAN, registration, and a test call.

  • 2

    Build an inbound call flow

    DID → time condition → IVR → ring group → voicemail, tested in and out of hours.

  • 3

    Configure and secure a SIP trunk

    Registration or IP auth, codec order, DTMF, outbound caller ID, and dialling restrictions.

  • 4

    Diagnose a one-way audio fault from a SIP trace

    Identify the SDP address problem and correct it.