Configuring a Snom 300, 320, 360, 370, 820, 821, 870 for 3CX Phone ...
Manually Configuring a Snom 300, 320, 360, 370, 820, 821, 870 IP Phone for 3CX Phone System
This guide has been tested for Snom 320,360,370, 820, 821, 870 with firmware version 8.4.31. Be aware that different firmware revisions may have different web interface formats and functionality.
The preferred method to configure a Snom Phone is via Provisioning . You can however follow this guide to manually configure your phone.
Configuring the Phone to Register with 3CX PhoneSystem
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