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Add a SIP Address

Exchange Online
 

Applies to: Exchange Online

Topic Last Modified: 2012-11-14

When you enable a user for UM and link them to a SIP URI dial plan, two EUM proxy addresses are created. One contains the user’s extension number and the other contains a SIP address for the user. The extension number is used when the user calls in to an Outlook Voice Access number.

SIP URI dial plans and SIP addresses are used when you’re integrating UM and Microsoft Office Communications Server 2007 R2 or Microsoft Lync Server. The SIP address is used by Communications Server or Lync Server to route incoming calls and send voice mail to the user. By default, the SIP address that’s used by UM will be the SIP address that’s used by Communications Server or Lync Server.

The primary SIP address you added when the user was enabled for UM will be listed as the primary EUM proxy address. If the primary SIP address was removed, the first EUM proxy address you add that contains the user’s SIP address will be listed as the primary EUM proxy address. Any additional SIP addresses you add will be listed as secondary EUM proxy addresses. When secondary SIP addresses are added, callers can leave voice mail for the user at SIP endpoints that the user is signed in to using the SIP addresses. All the voice messages will be delivered to the same user’s mailbox.

You can use the EAC or the Shell to add a primary or a secondary SIP address for a user. You can use the Email Address page on the user’s mailbox in the EAC to add a primary or secondary SIP address. You can’t use the UM Mailbox page in the EAC to add a primary or secondary SIP address.

You can view the primary and secondary SIP addresses for a user by using the Get-UMMailbox cmdlet or the Get-Mailbox cmdlet in the Shell.

For additional management tasks related to users who are enabled for voice mail, see Voice Mail-Enabled User Procedures.

  • Estimated time to complete: 3 minutes.
  • You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "UM mailboxes" entry in the Unified Messaging Permissions topic.
  • Before you perform these procedures, confirm that a SIP URI UM dial plan has been created. For detailed steps, see Create a UM Dial Plan.
  • Before you perform these procedures, confirm that a UM mailbox policy has been created. For detailed steps, see Create a UM Mailbox Policy.
  • Before you perform these procedures, confirm that the existing user is enabled for UM and linked to a SIP URI dial plan. For detailed steps, see Enable a User for Voice Mail.
  • Before you perform these procedures, confirm that the SIP address that will be assigned to the user is valid and formatted correctly.
  • 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 Recipients > Mailboxes.
  2. In the list view, select the mailbox for which you want to add a SIP address, and then click Edit Edit Icon.
  3. On the User Mailbox page, under Email address, click Add Add Icon.
  4. On the New email address page, select EUM and, in the Address/Extension box, enter the new SIP address for the user.
  5. On the New email address page, under Dial plan, click Browse to select the SIP URI dial plan, and then click OK.
  6. Click Save.

This example adds a SIP address for Tony Smith, a UM-enabled user.

noteNote:
Before you add a SIP address using the Shell, you need to determine the position of the EUM proxy address that you want to add. To determine the position, use the $mbx.EmailAddresses command. The first proxy address in the list will be 0.
$mbx=Get-Mailbox tony.smith
$mbx.EmailAddresses +="eum:tsmit@contoso.com;phone-context=MyDialPlan.contoso.com"
Set-Mailbox tony.smith -EmailAddresses $mbx.EmailAddresses
 
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