How to configure Kerio Operator to connect to Telephonic Canada


This topic is for versions Kerio Operator 2.3.5 and older. For more information about creating and configuring a SIP interfaceAn external interface used for connecting to SIP providers. in later versions, see Connecting to VoIP service providers.

Learn how to configure Kerio Operator with a SIPSession Initiation Protocol - A communication protocol used for voice and video calls in Internet telephony or private IP telephone systems. Trunk to Telephonic Canada


Before starting this procedure, ensure you have:

  • The telephone number or numbers assigned to you by Telephonic. Each number will include the Canadian’ international country code without + at the beginning. For example, 17785555555.
  • If you have a firewall, make sure the SIP and RTP ports are open and properly routed to Operator.
  • A static IP, as the typical configuration will use IP based registration without requiring authentication.
  • You have provided Telephonic with your static IP address.


  1. Log in to the administration interface of Kerio Operator.
  2. Go to the Call Routing screen.
  3. Click Add a SIP Interface.
  4. Enter the interface name. For example, Telephonic.
  5. Choose the option New provider and enter your telephone number. For example, 17785555555. In case of multiple numbers, use comma separation as noted in the dialog.
  6. Click Next.
  7. Choose the extension to receive incoming calls and enter the prefixCountry codes, area codes, a number, or a set of numbers that are dialed before the telephone numbers. that will be used to dial out. For example, 9.
  8. Click Next.
  9. In the SIP Registrar dialog, specify the hostname provided by Telephonic ( and the default port 5060. Leave the Username and password fields empty, and disable both checkboxes for registration and user ID.


Telephonic Canada provides a free testing account (with DID) and $5.00 credit for customers evaluating Kerio Operator.