Snom 300

Dealing with Missed Calls:

  • View Missed Calls:  Press the Up navigation arrow key while on the main display. Then press the √ button.
    • Cycle through the list using the Up and Down navigation arrows.
    • To redial the person whose call you missed, make sure their entry is the current one, press the Left navigation arrow key once, and press the √ button.
    • To obtain more details about the call, press the √ button and use the Up and Down navigation arrows to cycle through the details.
    • To "go back" one screen, or up one level in the menu, press the 'X' button once.
  • Clear Missed Calls:  Press the 'X' button next to the grey circle while on the main display.


  • Message Indicator:  This light situated next to the 'Retrieve' button blinks orange to indicate that you have new voicemail messages. The light will disappear after you have listened to all of your new messages.
  • Retrieve:  Use the third "Hotkey" down from the top to connect to your voicemail. This is identical to dialing the extension 6050, followed by the √. Once you have connected with the voicemail service, you will need to enter your mailbox number, which is your 4-digit extension, followed by your password, which is the last four digits of your SSN by default.


    The "Hotkeys" are the 6 buttons located on the right side of the phone directly beneath the Message Indicator. On most phones, the paper insert situated between them will be filled in with the feature represented by the button just above. The two at the very top are reserved for the two "lines" each phone has been setup to use by default. The others are 'Voicemail', 'Directory', 'Transfer', and 'Help', in that order. The latter dials the 'Help Desk', which has the same effect as dialing the four-digit extension 1318.

Speed Dial:

    You have the choice of setting up "Speed Dial" numbers for your phone as well. There is a maximum of 30 entries per phone, and they work as follows: Dial the speed dial number, followed by the ∗, then press the √ button to initiate the call. In order to have these numbers setup, please e-mail us with the number you would like dialed, and the speed dial number with which you would like it associated, at
    e.g.  Dial  23∗  √

Volume and Speakerphone:

  • Volume:  There are three distinct volume settings on your phone, namely the Ringer, Handset, and Speaker. The conditions for changing the volume of each of the three settings are listed below:
    1. Ringer: When neither the speaker or handset are active
    2. Handset: When the handset is active (e.g. handset lifted off the cradle)
    3. Speaker: When the speaker is active (e.g. the speakerphone is on)
  • Speaker:  Use this button to turn on, or turn off, the speakerphone.
  • Scenario:  You need to free up your hands to type while you are talking to someone over the handset. You press the 'Speaker' button to transition the call to the speakerphone, hang up the handset, and type away while contnuing the conversation.
    *Note:  Turning off the speakerphone with the 'Speaker' button only works once a call has been initiated or is active, and in the case that no numbers have been dialed. If you dial a sequence of numbers while using the speakerphone, and press the 'Speaker' button, you will initiate the call, just the same as if pressing the '√'

Navigation Keys:

  • Navigation Arrows:  Don't let this simple grey button fool you ! It has many different uses based on the context, though the controls are fairly intuitive.
  • *Note:  These instructions are specific to the 300. If you are using a 320 or 360, please switch pages at the top.
  • '√' Button:  This button's primary use is to initiate calls, but can generally be associated with the terms 'OK' or 'Enter'. Below is a list of this button's main functions.
    • Initiate a call, once the number has been entered in.
    • Go down one level in a menu
    • Scenario:  You press the left arrow while on the main display to see your missed calls, and decide to call one of the people that missed you. You navigate down to their entry in the list using the Up and Down arrow keys, then press the '√' button to initiate a call back to that person.
  • 'X' Button:  This button's primary use is to terminate calls, but generally can be be associated with the terms 'Cancel' or 'Go Back'. Below is a list of this button's main functions.
    • Terminate a call, while using either the speakerphone or handset
    • Remove the Missed Calls notification while on the main display
    • *Note:  This is a special case for this button. It is the only way to remove the Missed Calls notice.
    • Cancel a sequence of numbers that you began dialing
    • Scenario:  You begin dialing a friend's telephone number but remember that they are away for the day. You press the 'X' button to cancel the call before completing the number, returning you to the main display.
    • Go back up one level in a menu
    • Scenario:  You press the left arrow while on the main display to see your missed calls. Once you are done looking through the missed calls, you need to get out to the main display. You press the 'X' button once, and notice that you are looking at the menu one step before missed calls. You press the 'X' button once more and now you have gone back up one more level bringing you to the main display.

Special Numbers:

  • Directory:  Use this to get to the Department phone Directory. This is the same one that one can be reached from the outside by dialing 732-445-2390 x2, or internally using the extension 2000.
  • Scenario:  You want to call someone but do not remember their personal extension, and would rather use the Directory than look it up online. Press the 'Directory' button and then dial the three numbers that contain the first three letters of the person's last name.
  • Help:  Use this to dial the Help Desk without having to dial the extension 1318 followed by the √
  • Scenario:  You desperately need to talk to the Help Desk because you cannot remember our extension and you are afraid that your computer is melting your brain.

Special Call Features:

  • Hold:  In order to place the call on hold press the "Hotkey" corresponding to the open line, which will result in the hotkey's light blinking orange. While on hold, the person will hear preselected music until the call has been picked up again, or terminated.
  • Scenario:  You get a call from an inquisitive Undergraduate student seeking a Special Permission number, but you need to check the status of the Special Permission page. Instead of muting your end of the line, you decide to treat them to wonderful hold music instead by pressing the 'Hold' button. When you are done checking, you press the 'Hold' button again to let them know that it will not be active until the start of the upcoming semester.
  • Transfer:  Use the fifth "Hotkey" from the top to transfer the active line, or the last line that you placed on hold. Please note that pressing the 'Transfer' hotkey while on an active line (i.e. a line that is in use and not currently on hold) will cause the person will be placed on hold until either the transfer is complete, or the call is terminated. The one important distinction is that the light next to the active line will not blink as it would under normal hold conditions. Once you have pressed the 'Transfer' hotkey, dial the 4-digit extension of the person to whom you wish to transfer the call and press the √. Once that is accomplished, the call will be transferred to the other person, and will be out of your hands.
  • Scenario:  Someone calls you out of the blue frantically trying to get in touch with Pat. You quickly assure them that all hope is not lost and that you can transfer them directly to her. You know that it is lunchtime, so you place the person on hold, and dial Pat's 4-digit extension, followed by the √ button to initiate the call. You let Pat know that there is someone having a pshycotic breakdown that wants to talk with her, and Pat graciously agrees to take the call. You then press the 'X' to hang up with Pat, then press the 'Transfer' button, followed by Pat's 4-digit extension and the √ button.
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