1. Open Communications Server Control Panel.

2. In the left navigation bar, click Conferencing.

3. Click the Dial-in Access Number tab, and then click New to open the New Dial-in Access Number dialog box.

4. In Display number, type the phone number that public switched telephone network (PSTN) phone users dial to join a conference.

   Note:
   This number is displayed in meeting invitations and on the Dial-in Conferencing Settings Web page.

5. In Display name, type a meaningful description for the dial-in access number. This is the name that is associated with the dial-in access number in Office Communicator search results.

   Note:
   This name is displayed in meeting invitations. It can include explanatory text to identify the dial-in access number. For example, it can include the name of the country/region.

6. In Line URI, type the E.164 number of the dial-in access number in TEL URI format, including the + symbol before the number and excluding spaces. For example, tel:+14255550200.

   Note:
   The same Line URI cannot be reused by another dial-in conferencing access number.

7. In SIP URI, do the following:

   • In the text box, type a unique SIP URI for this dial-in conferencing access number. This SIP URI is displayed in various locations including, but not limited to, call notification messages and previous versions of Communicator clients.
     
     

     Note:
     The same SIP URI cannot be reused by another dial-in conferencing access number. The SIP URI cannot be modified once the access number is created. The only way to change the SIP URI is to delete and recreate the access number.

   • In the drop-down list box, click the domain of the Conferencing Attendant application that supports this dial-in access number.
     
     

8. In Pool, click the pool that is running the instance of Conferencing Attendant that supports this dial-in access number.

   Note:
   If you need to change the pool after the access number is created, you must use the Move-CsApplicationEndpoint cmdlet or delete and recreate the access number.

9. In Primary language, click the language in which prompts are played for this dial-in access number. The primary language is the language Conferencing Attendant uses to answer the call. (Supported languages are displayed alongside each access phone number on the Dial-in Conferencing Settings Web page.)

10. (Optional) In Secondary languages (maximum of four), click Add, click an additional language that you want to support for callers to this dial-in access number, and then click OK. You can choose up to four secondary languages for each dial-in access number. Users can select a secondary language before entering the conference ID when they call Conferencing Attendant.

11. In Associated regions, click Add, click one or more regions that are associated with the dial plans for this dial-in access number, and then click OK.

12. Click Commit.

Tasks