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Configure a DTMF Fallback Auto Attendant

 

Applies to: Exchange Server 2013, Exchange Online

Topic Last Modified: 2012-11-30

You can configure a speech-enabled Unified Messaging (UM) auto attendant that has a dual tone multi-frequency (DTMF) fallback auto attendant. A DTMF fallback auto attendant is used when the UM speech-enabled auto attendant can't understand or recognize the speech inputs provided by a caller. If a DTMF fallback auto attendant has been configured, the caller has to use DTMF inputs, also known as touchtone inputs, to navigate the auto attendant menu system, spell a user's name, or use a custom menu prompt. If no DTMF fallback auto attendant has been configured, and the maximum number of speech inputs is exceeded because the system didn't understand what the caller said, the system will respond with this prompt: "Sorry, I couldn't help. Please call back later."

By default, an auto attendant isn't speech-enabled when you create it. After you speech-enable the auto attendant, callers can use only voice commands to navigate the auto attendant menu system, and touchtone inputs can't be used. Although it isn't required, we recommend that you configure a DTMF fallback auto attendant for each speech-enabled auto attendant so callers can use touchtone inputs if the speech-enabled auto attendant doesn't recognize or understand the words they say. We also recommend that you don't speech-enable a DTMF fallback auto attendant.

For additional management tasks related to UM auto attendants, see UM Auto Attendant Procedures.

  • Estimated time to complete: Less than 1 minute.
  • You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "UM auto attendants" entry in the Unified Messaging Permissions topic.
  • Before you perform these procedures, confirm that a UM dial plan has been created. For detailed steps, see Create a UM Dial Plan.
  • Before you perform these procedures, confirm that a UM auto attendant has been created. For detailed steps, see Create a UM Auto Attendant.
  • For information about keyboard shortcuts that may apply to the procedures in this topic, see Keyboard Shortcuts in the Exchange Admin Center.
tipTip:
Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.
  1. In the EAC, navigate to Unified Messaging > UM dial plans. In the list view, select the UM dial plan you want to change and click Edit Edit Icon.
  2. On the UM Dial Plan page, under UM Auto Attendants, select the UM auto attendant for which you want to create a DTMF fallback auto attendant. On the toolbar, click Edit Edit Icon.
  3. On the UM Auto Attendant page > General, select the check box next to Use this auto attendant when voice commands don’t work correctly, and then click Browse.
  4. On the Select a UM Auto Attendant page, select the auto attendant you want to use as a DTMF fallback auto attendant, and then click Save.
importantImportant:
You must first speech-enable the auto attendant before you can browse for a DTMF fallback auto attendant you have set up.

This example configures a UM auto attendant named MySpeechEnabledAA to use a DTMF fallback auto attendant named MyDTMFAA.

Set-UMAutoAttendant -Identity MySpeechEnabledAA -DTMFFallbackAutoAttendant MyDTMFAA
 
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