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Snom M3

You do not need to dial any numerical prefix before dialing an extension or external number. Simply dial the extension or 10 digit number.

Call Forwarding

There is only one type of forwarding for this device – all incoming calls will be forwarded.

1. Dial *72.
Note: You will hear a dial tone after dialing *72.

2. Enter the internal extension or external number to which calls will be forwarded.

To disable call forwarding, dial *73.

Do Not Disturb (DND)

Enabling DND stops your phone from ringing and sends all incoming calls directly to voicemail.  Calls are logged in your Missed Calls.

1. Press the Options softkey.

2. Select DND.

3. Select Enabled or Disabled to enable/disable. 

Voicemail Access

1. Dial *99.

2. Dial your password (default 0000).

Speed Dial

This device does not support this feature. 

3-Way Calls

1. Press the Hold softkey to place the current call on hold.

2. Dial the internal extension or external number to add to the conference and press the Green Phone key.

3. Wait for the second party to answer, and then let them know that you would like to add them to a 3-way call.

4. Press the Options softkey.

Select Conference.

Warm Transfer

Places a current call on hold and allows you to speak with the other party before transferring the call to them.

1. While on an active call, press the Hold softkey to place the current call on hold.

2. Dial the internal extension or external number.

3. Press the Green Phone key to speak with the destination party.

4. Press the Options softkey.

5. Select Transfer.

Blind Transfer

A blind transfer routes a call to another party without speaking to them first.

1. While on an active call, press the Hold > Options softkey.

2. Select Transfer.

3. Dial the internal extension or external number.

4. Press the Green Phone key.

Tip: To transfer a call directly to voicemail, dial 0 + extension.


1. Press the Hold softkey.

2. Press the Red Phone key to retrieve the call.

Modify Ringtone

1. Press the center navigation key to access Settings.

2. Select Audio settings > Ringer melody > Voip.

3. If there are multiple lines assigned to the device, select the line you wish to modify.

4. Highlight the desired ringtone (press the Play softkey to sample ringtones).

5. Press the center navigation key.

Note: This device does not support silent ringtones.

Presence Monitoring

This device does not support this feature.

*Softkeys are buttons located around the display whose function changes depending on the context. These keys are managed by your system administrator.

See a feature you don’t understand? See our phone feature glossary.

Call Handling Features

  • Warm Transfer
  • Blind Transfer
  • Do Not Disturb (DND)
  • Call Forward All
  • Intercom (* + ext)
  • Hold
  • Reject
  • Multi-way Calling
  • On-hook Dialing
  • Speakerphone

User Interface Features

  • Adjustable Ringer Volume

Feature Keys

  • 3 SIP Accounts
  • Mute Button


  • Color Display
  • Message Waiting Indicator (MWI)
  • Caller ID (CID)
  • Time/Date Display
  • On-Screen Message Display

Network & Provisioning

  • Web Interface Provisionable


  • Wireless Handset

Before you begin:

  1. Verify a device profile has been created.
  2. Verify the phone’s MAC address has been assigned to the device profile.

1. Retrieve the IP Address.

2. Open an incognito window in Google Chrome, type the IP address into the address (URL) bar, and then press Enter on your keyboard.

Note: If you are prompted to enter a password, contact Customer Support for assistance.

3. Click Advanced > Update tab.

4. Define the following settings:

Transfer Protocol


Configuration Address


Note: Replace ‹domain› with your unique domain (found in parentheses at the top of the admin dashboard).


5. Press [Save Changes] > Advanced > [Reboot].

Note: If the phone does not automatically reboot, you must power cycle the device to apply its provisioning settings.

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