3CX Life Hacks
3 and 4 digits on the same 3CX using WebAPI
  1. Install WebAPI by Creomate
  2. Execute https://{{3CXFQDN}}/webapi/{{AccessKey}}/ext.new?num=300
  3. Execute https://{{3CXFQDN}}/webapi/{{AccessKey}}/ext.new?num=3000
  4. Use it as usual

NB. To use it, you need to purchase a WebAPI for 3CX license according to the number of concurrent calls in your 3CX Phone system.

Disclaimer: This life hack is provided “as is”. Use it solely at your own risk.
3CX 3 and 4 digits on the same server