Outbound Calling to Generic SIP Trunk

1. Brekeke Product Name and Version: Brekeke SIP Server

2. Java version: 1.7.0_80

3. OS type and the version: Windows Server 2012

4. UA (phone), gateway or other hardware/software involved: X-Lite softphone, Generic SIP Trunk gateway

5. Your problem: Unable to make outbound calls after adding SIP Gateway under ARS. Getting "486 Busy Here" when making calls.

It seem you are using Brekeke PBX instead of Brekeke SIP Server.
Is it correct?
Which version of Brekeke PBX is it?