# How can I reject calls when busy (Busy on Busy)?

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**Note:** This feature works differently in sipgate neo, so this article does not apply.
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Enable the **Reject Call When Busy** feature so that callers receive a busy tone when you are already on a call. This ensures that no additional calls come through while you're engaged in another conversation.

**To enable this feature, follow these steps**

1. Click **My Telephony** on the homepage.
2. In the left-hand menu, go to **Settings** and then **User Settings**.
3. Scroll down until you find the **Reject Call When Busy** section.
4. Click the toggle so that it turns green and says **Yes**.

Once activated, all phone numbers linked to your user account will play a busy tone if you're already on a call. This setting takes effect immediately.

If Busy on Busy is deactivated, you will hear a call waiting tone during an ongoing call if another call comes in. However, if you are in a channel with an activated waiting loop, call waiting is automatically suppressed to avoid interference.

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**Exception:** If you use the **sipgate app 2.x** for calls, the **Busy on Busy** function will not work. The sipgate app relies on a separate app extension for outgoing calls, which is not monitored by this feature. In this case, you will remain reachable, and incoming calls will still be routed to your VoIP phone or other devices.
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