Counterpath's Bria softphone is compatible with Windows and Mac OS.
To set up Bria on your smartphone or tablet click here.
Bria is recommended for use with sipgate:
sipgate: Recommended Phones & Apps
Counterpath's Bria softphone is available here.
After installing Bria you'll need your SIPID and SIP Password.
Open Bria and click Softphone --> Account Settings:
Enter your sipgate SIP Credentials:
After clicking OK your account will be enabled for inbound and outbound calls:
To test your configuration please see this Help Article:
If you've problems registering your phone online, with placing calls or with audio quality see the following links and Help Articles for troubleshooting advice:
Countertpath Technical Support & information:
sipgate Help & Troubleshooting articles:
The images in the above guide are taken from Bria 4 4.1.1 on Windows 8.1.
The layout of the interface on Windows, Linux and Mac OS will be similar.