• The instructions below are intended for users on OTHOS TELECOM phone system ONLY, and may not be applicable for devices on other platforms. For more information on using our services, please visit our website www.voipeasy.co.za or give us a call on 021 673 6801. 



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Interactive Step-by-step 


Flow: Register Provider's trunk on Spinner  >  Load DID/CLI numbers onto Spinner  >  Register Spinner trunk on PBX/SBC  >  Initiate calls via the PBX  >  DID/CLI will be processed by the Spinner and sent to the VoIP Provider


1. What You’ll Need

  • An active SIP Trunk from your chosen provider.
  • The trunk registration details.
  • DID/CLI numbers LINKED to this trunk (The DIDs must be whitelisted/linked to the trunk on the provider’s SBC side).
  • SIP End-point. Examples:
    1. PBX (e.g. Yeastar, FreePBX, Asterisk, etc.)
    2. Dialer (e.g. Vicidial, GoAutoDial, etc.)
    3. Softphone (e.g., Microsip)


2. Step-by-Step Instructions – Configuring Spinner

  • Add SIP Trunk: Go to Settings>Add Trunk
    1. Trunk Name: Add Trunk Name
    2. Enable or disable the trunk (if disabled, calls won’t be made)
    3. Gateway address: Add SIP Server for trunk registration (e.g. voip.othos.co.za, Reg IP, etc)
    4. Username: Add the trunk SIP registration username
    5. Password: Add the trunk SIP registration password
    6. Register: Disabled by default for outbound only. Activate register ONLY if managing INBOUND calls via the Spinner
    7. Codec: Leave it blank if Media Pass Through is active (We recommend using Media Pass Through)


  • Add DID/CLI Numbers: Go to Numbers>Import Numbers
    1. Create a CSV File with the DID/CLI numbers linked to the loaded trunk
    2. The supported number formats are +27…, 0… or 27… - The system normalizes the number format.
    3. Load the CSV


3. Configuring SIP End Point (PBX)

  • Go to the desired SIP endpoint
  • Create a trunk/gateway
  • Add the trunk details:
    1. Domain/server/IP: sip.ecn-spinner.othos.co.za
    2. Username: Trunk SIP Reg Username
    3. Password: ORIGINAL Trunk Password – The same trunk password from the Provider
    4. Transport: UDP or TCP

      Standard Example on PBX:


4. Other Configurations on Spinner

  • Media Pass through: allows audio to flow directly between endpoints, bypassing the Spinner. Switch on if you need the Call Recording feature on the Spinner (license dependent)
  • Caller ID: Select the DID delivery strategy (Random, least used, etc)
  • CDR: Switch on CDR storage – required for reports and statistics (license dependent)
  • Recording: Depending on your license, you can activate call recording on the Spinner (required media pass through OFF)