Verify that PSTN dial-in conferencing is enabled within the Skype for Business or Lync deployment.
This verifies that conference ID coordinates are present within Skype for Business or Lync conference invitations. If this is already enabled, you can skip this step. For detailed instructions on how to configure dial-in conferencing, see the Microsoft documentation.
Create a Dedicated User Account
Polycom recommends creating a dedicated Skype for Business account that can be used to perform Conference ID to Skype for Business Conference SIP URI resolution.
You can use an existing account, however the account must meet the following:
- Enabled for PC-to-PC telephony
- Homed on the same Front End Pool defined within your RealConnect Hybrid settings
Create a Trusted Application
Create a trusted application associated with the Polycom Cloud Relay within a selected Trusted Application Pool on the Lync 2013 or Skype for Business server.
This can be done on the Skype for Business server with the Topology Builder or by using Microsoft PowerShell. The following Microsoft PowerShell example sets up a trusted application for a Polycom Cloud Relay.
Note: This command example will generate a few error messages as the trusted application you are creating is not domain-joined. You can ignore both the Warning and Missing Computer messages.
Microsoft Powershell commands to establish the trusted application
New-CsTrustedApplicationPool -Identity <ApplicationFQDN> -Registrar <FE or Pool FQDN> -site 1 -RequiresReplication $false -ThrottleAsServer $true -TreatAsAuthenticated $true
New-CsTrustedApplication -ApplicationID rc-hybrid -TrustedApplicationPoolFqdn <ApplicationFQDN> -Port 5061
Create a Trusted Application Certificate
Generate a certificate for the trusted application using the Skype for Business IIS 7 manager, so the Skype for Business Server trusts it.
This certificate must use the same FQDN as in the Trusted Application created for the Polycom Cloud Relay. For detailed instructions on how to generate a domain certificate for the Polycom Cloud Relay, see the Microsoft documentation.
Note: You need to create a certificate for this trusted application.