A VoIP Trunk is a multi-line service used in conjunction with either a VoIP switchboard, or, a gateway device connected to a traditional switchboard. A single telephone number is provided for inbound service.

The VoIP Trunk service can be provisioned to include from 4 up to 120 channels making it suitable in both small and large businesses as well as call centres. It can be upgraded at any time without interruption to service.


  • One telephone number
  • Call forwarding
  • Voicemail
  • Multiple simultaneous calls (one per channel)
  • Call waiting (on compatible phones)
  • Choice between SIP or IAX2 protocols
  • Multiple codec support
  • Free fax-to-email service
  • Free voicemail-to-email service
  • Switch Telecom local and International call rates.
  • Keep your main Telkom number by porting it to Switch Telecom

Monthly Service Fee: 

R100.00 (incl. VAT) for 4 channels

R25.00 (incl. VAT) per extra channel

Installation: free

Contract: month-to-month


  • A Switch Telecom Hosted Switchboard or
  • A compatible VoIP switchboard; or
  • A compatible VoIP gateway (FXS or ISDN), and
  • A reliable Broadband internet connection.