How to connect Zoiper to Sonetel
Zoiper is a popular 3rd party SIP phone that can be connected to Sonetel for making and receiving calls. It works with Windows, Mac and Linux.
You can download the latest Zoiper softphone here. 
- Go to settings Go to Settings in Zoiper and create a new account.
- Select SIP Select SIP in the Account wizard.
- Enter email, password and outbound proxy In the next screen enter the email address & password you use to sign in to your Sonetel account. Also enter sip.sonetel.com as the Outbound proxy .
- Skip auto-detection Click on Next and in the next screen check Skip auto-detection.
- Auth username Now, go to Settings and then Preferences and enter the Auth. username. This should be the same as your Username (i.e. the first part of your email address). For example, if email address is john.smith@mycompany.com enter john.smith
- Check rport Click on the Advanced tab and ensure Use rport is checked.
- Enter STUN details Enter the STUN server details as below:
- Server Hostname/IP stun.sonetel.com
- Port 3478
- Refresh period 90
- Click OK Click on OK to save the settings and you should get registered .
Troubleshooting
- Don't get registered If you don’t get registered right away, open the Preferences and first click on Unregister and then on Register.
- Can't hear anything If you’re unable to hear anything while making calls go to Settings > Preferences and in the Advanced tab, enable rport media.
Our support does not include help with SIP phones. We can however assist you for a small extra fee.