Call Forwarding

Introduction

Call Forwarding rules define how 3CX routes calls based on your extension’s status. For example, if you’re in a meeting and your status is set to ‘Do Not Disturb (DND)’ you can forward all calls to your “Voicemail”. You can also configure exceptions to these rules as well as automatic status switching based on your office hours.

Configure Forwarding Rules

In your web client, click on "Settings → Call Forwarding”. Click on any one of the status options to configure your call forwarding rules for that status.

  • Unanswered calls:
  • Define when a call is considered unanswered in seconds; for example, if the phone rings for more than 20 seconds it should be considered unanswered and follow your forwarding rules.
  • Define where the call should be forwarded to:
  • Voicemail
  • Extension number - choose a colleague to forward calls to.
  • My mobile - if you check the “Rebound” box the call will be announced and you can accept or reject it.
  • External number - choose another number to forward calls to.
  • System extension - forwards calls to a queue or ring group.
  • Send busy - a busy tone will play and the call will be terminated.
  • Busy or Not Registered
  • When your extension is busy or not registered, you can set the same call forwarding rules as above.
  • Also ring my mobile
  • Check this box so that your mobile also rings.
  • Accept multiple calls
  • Accept PUSH notifications
  • Will notify you when an incoming call occurs or you miss a call.

Exceptions

Configure call forwarding exceptions so that certain calls are handled differently. For example, calls from your boss or important clients can be forwarded elsewhere.

Schedule

The Schedule option can automatically change your status to “Available” based on the group or extension office hours. Outside office hours, your status is switched to “Do Not Disturb” and during break times it is set to “Away”.

By default your extension uses the office hours configured for the department. You can however override these and set different office hours. Optionally, you can disable outbound calls outside of office hours.

See Also

Last Updated
This document was last updated on 2 February 2026
https://www.3cx.com/user-manual/call-forwarding/