Adjust Audio Settings on the Mitel 6915 Desk Phone

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Adjust Audio Settings on the Mitel 6915 Desk Phone
Learn how to adjust the volume for your handset, headset, speaker, and ringer on the Mitel 6915 desk phone at NEO A&M College.
📋 Before You Begin
  • You must have a Mitel 6915 desk phone assigned to your office or workspace.
  • No internet connection or login credentials are required for this task.
  • Estimated time: Under 1 minute
  • These instructions apply to the Mitel 6915 running the AT&T Hosted Voice Service (HVS) platform.

📞 Adjusting Handset, Headset, or Speaker Volume ⏱️ Est. Time: Under 1 minute  |  🖥️ Device: Mitel 6915

You can independently control the volume for the handset, headset, and speaker on your Mitel 6915 phone. Follow these steps:

  1. Pick up the handset, put on your headset, or press the Speaker button to begin or be in an active call — or simply have the phone in its idle (on-hook) state.
  2. Locate the Volume rocker button on the left or right side of the phone body.
  3. Press the Volume rocker Up (top of the rocker) to increase the volume.
  4. Press the Volume rocker Down (bottom of the rocker) to decrease the volume.
  5. Watch the on-screen volume bar — it will display a label showing which audio mode is being adjusted: Handset, Headset, Speaker, or Ringer, depending on what is currently active.
  6. Continue pressing until you reach a comfortable level. Your settings are saved automatically — no additional steps required.
💡 Tip: The phone remembers your preferred volume level for each audio mode (handset, headset, speaker) separately, so you only need to set it once per mode.

🔔 Adjusting Ringer Volume ⏱️ Est. Time: Under 1 minute  |  🖥️ Device: Mitel 6915

To adjust how loud your phone rings when you receive a call, follow these steps:

  1. Wait for your phone to ring (an incoming call will trigger the ringer) — or ask a colleague to call your extension so you can hear the ringer while adjusting it.
  2. While the phone is actively ringing, press the Volume rocker Up to increase or Volume rocker Down to decrease the ringer volume.
  3. The screen will display a Ringer volume bar confirming the adjustment.
  4. Once you reach the desired level, the setting is saved automatically.
⚠️ Note: You can only adjust the ringer volume while the phone is actively ringing. If you press the Volume rocker when the phone is idle and not in a call, it will adjust the Speaker volume instead.
💡 Tip: If your ringer seems too quiet or too loud, ask a colleague to call you so you can adjust it in real time using the Volume rocker.
🆘 Need Help?

If you have trouble adjusting your audio settings or experience issues with your Mitel 6915 desk phone, contact the NEO A&M College IT Help Desk:

  • 📞 Phone: (918) 540-6099
  • 📧 Email: neosuport@neo.edu
  • 🚶 Walk-in: IT Department, Library Administration, 2nd Floor, Room 216
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