Getting Started with: Cisco 7821 IP Phone and Features

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Table of Contents


Getting Started - User Guides

Placing a Call

For information on how to make a call from this device, please see Placing a Call.

How to - Call Features

Forward Calls 

  1. On any idle line from which you want to forward your calls, press the Forward All soft key. 

  1. Enter a phone number, or select an entry from the Call History list. (Press the Messages button to forward all calls to voicemail.) 

  • The display will show a confirmation of the number to which your calls will be forwarded. 

  1. To verify that your calls are forwarded, look for: 

  • A Forward All icon in the line label. 

  • The forwarding information in the header. 

  1. To cancel call forwarding, press the Forward Off soft key. 

Divert a Call 

Divert an incoming (ringing) call in any of these ways: 

  • While on another call: 

  • Use the Navigation pad to highlight the incoming call and then press the Divert soft key. (Otherwise pressing the Divert soft key will redirect the current, active call.) 

  • Silence the incoming call by pressing the Volume down button once, and then let the incoming call go to the target number (voicemail or predetermined number set up by the OIT). 

  • While not on a call: 

  • To redirect an incoming call while not on a call, press the Divert soft key. 

  • Diverting a held call: 

  • First resume the call and then press the Divert soft key. 

Hold and Resume a Call 

  1. To put a call on hold, press the Hold button. 

  • The Hold icon displays and the line button pulses green. 

  1. To resume the highlighted call, do one of these: 

  • Press the pulsing green session button. 

  • Press the Resume soft key. 

  • Press the Select button in the Navigation pad

Mute Your Microphone 

  1. Press the Mute button to turn Mute on. Visual confirmation displays. 

  1. Press the Mute button again to turn Mute off. 

Dial a Number on Speakerphone 

  1. Enter or speed-dial a phone number. The line will begin ringing. 

  1. To continue the call off speakerphone, pick up the handset. 

Transfer a Call to Another Number 

  1. Start with an active call (not on hold). 

  1. Press the Transfer button. 

  1. Enter the transfer recipient's phone number. 

  1. While ringing or once connected, you can press the Transfer button again to complete the transfer 

Start Phone Conferencing 

  1. Start with a connected call that is not on hold. 
  1. Press the Conference button 

  • Enter the phone number for the party you want to add and press the Call soft key. 

  • Press a Speed Dial button 

  • Press the Speed Dial soft key and enter a speed dial number, then press the Speed Dial soft key again. 

  • Select a call from the Call History. 

  1. Wait for party to answer (or skip direct to step 5 while call is ringing) 

  1. Press the Conference button or the Conference soft key. 

  1. To add additional participants, repeat these steps. 

Using Speed Dials 

You can customize your speed dial entries by going to 

To access your speed dials do the following: 

  1. Press the down on the Navigation Pad. Use the Navigation Pad to highlight the Speed Dial entry. Once highlighted you can press the Call soft key button, lift up the handset, or press the Speakerphone button to call. Speed Dial numbers will appear nine at a time. 

  1. On the Key Pad, press the list number of the Speed Dial contact you'd like to dial, followed by the Speed Dial soft key. For example, if the Service Desk were fourth on the list, you would press 4, followed by Speed Dial. 

Call History 

Call History allows you to view information on the last 150 calls on your phone. An icon displays indicating the type of call: 

  • Received 

  • Placed 

  • Missed 

You can sort the Call History list by all lines, each line, or by missed calls. 

To sort the call history for each line, select the individual line for which you want to see the Call History, or select the All Calls soft key to see the merged history for all lines. 

You can also dial a number directly from the Call History list. 

View Call History 
  1. Press the Applications button . 

  1. Select Call History. (Use the Navigation pad and Select button to scroll and select.) The phone screen displays the call history with an icon associated for each type of call. 

  1. Press the Return soft key to view the Applications screen. 

Dial From Call History 
  1. Press the Applications button . 

  1. Select Call History. (Use the Navigation pad and Select button to scroll and select.) 

  1. From the Call History screen, highlight the call you want to dial and do one of the following: 

  • Press the Call soft key. 

  • Pick up the handset. 

  • Double-tap on the number on the phone screen. 

  • Press the Select button. 

  • Press the speakerphone or headset button. 

Clear Call History 
  1. Press the Applications button . 

  1. Select Call History. (Use the Navigation bar and select button to scroll and select.) 

  1. Press the Clear List soft key to clear the entire call history on the phone. 

  1. Press the Delete soft key to delete the call history on the phone, or press the Cancel soft key to go back to the Call History screen. 

  1. Press the Exit soft key to return to Applications screen. 


You can choose the ringtone, per line, that your phone plays to indicate an incoming call. 

Change Ringtone for a Line 
  1. Press the Applications button . 

  1. Select Preferences. (Use the Navigation bar and select button to scroll and select.) 

  1. Press Ringtone 

  1. Highlight a ringtone. 

  1. Press Play soft key. 

  1. Press the Set soft key to apply the ringtone. 

  1. Press the Return soft key to return to the Preferences screen. 

Search for and Dial a Contact 

  1. Press the Contacts button 

  1. Select Corporate Directory. (Use the Navigation bar and button to scroll and select.) 

  1. Select any of these criteria to search for a co-worker: 

  • First name 

  • Last name 

  • Phone Number 

  1. Enter the search criteria information, press the Submit soft key, and select a contact. 

  1. To dial, perform any of these actions: 

  • Press the Dial soft key. 

  • Press the Select button. 

  • From the keypad, press the number that is displayed in the upper right-hand corner of the contact label. 

  • Press the Speakerphone button. 

Voice Mail Messages

Check for Voice Messages 

Check for voice messages in any of these ways: 

  • Look for a solid red light on your handset. 

  • Look for a Message icon on a line label. 

Listen to Voice Messages 

To listen to voice messages, do the following: 

  1. Press the Messages button. 

  1. Follow the prompts to listen to your voice messages. 

  • After you listen to your new voice messages, the message indicators are updated on the phone screen. If there are no new voice messages, the Message icon is removed from the line label, and the Voicemail icon is removed from the right side of the phone screen. 


If you are having issues, contact the Technology Help Center and provide the following information: 

  • Your OHIO email address. 

  • The university telephone number having trouble. 

Get help from OIT


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Article ID: 190
Wed 3/23/22 6:05 PM
Tue 5/24/22 1:32 PM