AudioCodes 420HD - Enabling Call Waiting; Managing Simultaneous Incoming Calls; Configuring Busy on Busy

User's Manual 5. Customizing the Phone
Version 2.0.13 29 420HD IP Phone for Microsoft Skype for Business
5.3 Enabling Call Waiting
You can enable or disable call waiting.
Ø To enable or disable call waiting:
1. Access the Call Waiting screen (MENU key > Settings > Call Waiting).
2. Navigate to and select:
• Disable (disables call waiting)
-OR-
• Enable (enables call waiting)
-OR-
• Busy on busy (see Section 5.4.1 below)
3. Press the Select softkey to apply your settings.
4. Press the Save softkey to save your settings.
5.4 Managing Simultaneous Incoming Calls
If two calls simultaneously come in on a phone, or if a user is in a call and a third party calls, the
phone's LCD displays them in a graphically user-friendly way.
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Simultaneous incoming calls; both calling parties flash:
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When one of the calls is answered:
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When a phone is in a call and another comes in, the incoming call flashes:
Additional visual indications on the device:
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The red Programmable Key LED flashes adjacent to the incoming call displayed in the LCD
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The blue Ring LED in the uppermost right corner of the device flashes
5.4.1 Configuring Busy on Busy
This feature rejects an coming call if you're already in an active call on either the IP phone or
Skype for Windows client. It plays a busy signal to the caller.