Dial-In Access Numbers

Dial-in access numbers are the phone numbers users dial to reach the audio conferencing service. For each access number, a SIP-enabled contact object is created within Active Directory. These objects should not be modified with regular tools and should only be managed using the Lync management tools.

Dial-in access numbers have a region associated that ties them to a particular dial plan. This association is how a dial-in access contact knows which normalization rules to apply when callers enter extensions or attempt to dial out.

The following options are available when creating a dial-in access number:

• Display number—The text format of the number as it is displayed to callers who dial the number from a Lync client. PSTN dial-in users do not see this format because they do not have a screen, but the format entered here is also used when online meeting invitations are sent from an Outlook client.

• Display name—The name displayed in meeting invitations and on the dial-in conferencing settings page. This is the name of the Active Directory contact created for the access number. Use a name here that is recognizable to callers.

• Line URI—The actual phone number users dial. This should be specified in E.164 format with the tel: prefix.

• SIP URI—The SIP URI assigned to the contact object. It must be unique within the organization and use a sip: prefix.

• Pool—The pool where the contact object is homed.

• Primary language—The primary language used to make conferencing announcements.

• Secondary languages—Any secondary language choices for conferencing announcements. Up to four secondary languages can be specified.

• Associated regions—Dial plan regions that are associated with the dial-in access number.

Perform the following steps to create a new dial-in access number:

1. Open the Lync Server 2010 Control Panel.

2. Click Conferencing.

3. Click Dial-In Access Number.

4. Click New.

5. Enter a Display number for the contact.

6. Enter a Display name for the contact.

7. Enter a Line URI in E.164 format using a tel: prefix.

8. Enter a SIP URI using a sip: prefix and select a SIP domain internal to the organization.

9. Select a Pool where the object will be homed.

10. Select a Primary language for the conference announcements.

11. Press the Add button and select up to four Secondary languages.

12. Click the Add button and select Associated regions for the dial-in access number. Figure 19.2 shows a sample dial-in access number.

Figure 19.2 Creating a Dial-In Access Number

To use the Lync Server Management Shell to create the dial-in access number, use the following syntax:

New-CsDialInConferencingAccessNumber –PrimaryURI <SIP URI including sip: prefix>
-DisplayNumber <String as displayed to users> -LineUri <Line URI including tel: prefix> -
Regions <Comma separated list of regions> -Pool <Fully-qualified name of pool>
-PrimaryLanguage <Language code> -DisplayName <Contact display name> -SecondaryLanguages
<Comma separated list of language codes>