Topic Last Modified: 2010-12-05

When you deploy dial-in conferencing, you need to set up phone numbers that users can dial from the public switched telephone network (PSTN) to join the audio portion of conferences. These dial-in access numbers appear in meeting invitations and on the Dial-in Conferencing Settings webpage.

Before you can create dial-in access numbers, you must first plan your dial-in conferencing regions and then configure dial plans with the regions. For more details about regions, see Planning for Dial-In Conferencing in the Planning documentation. For details about configuring dial plans for dial-in conferencing, see Configure Dial Plans for Dial-in Conferencing.

You cannot use a new dial-in access number until Active Directory Domain Services (AD DS) replication of that access number is complete. Replication can take several hours to complete.
After you create dial-in access numbers, you can modify the display name for the Active Directory contact objects so that users can more easily identify the correct access number. Use the Set-CsDialInConferencingAccessNumber cmdlet to modify the display name. You should not modify Active Directory objects manually. For details about modifying an access number, see Lync Server Management Shell documentation for the Set-CsDialInConferencingAccessNumber cmdlet.

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