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SIP and H.323 Calling with Teams Rooms

  • Article
  • Applies to:
    Microsoft Teams

SIP and H.323 calling is available on Microsoft Teams Rooms on Windows devices licensed with a Microsoft Teams Rooms Pro license. This functionality uses a Cloud Video Interop provider which you can enable in your tenant.

This feature enables calls with audio, video, and screen sharing between Teams Rooms devices and other conferencing endpoints that support either the SIP or the H.323 protocol. The SIP and H.323 endpoints can be either internal or external to your organization. SIP and H.323 dialing is disabled by default in your organization. You must follow the steps in this document to enable this functionality using Microsoft Teams PowerShell. SIP & H.323 calls from your Teams Rooms device are Teams calls to the Microsoft 365 cloud, which then communicates with your provider. No other network or firewall rules are required to enable this functionality if you already have working Teams Rooms devices deployed.

If you have multiple Teams Rooms all with a Pro licenses deployed in your organization, you can configure SIP and H.323 dialing for one or all of your Teams Rooms.

Important

This feature is only available for Microsoft Teams Rooms devices licensed with a Teams Rooms Pro license and is only availble for Teams Rooms on Windows device. This won't work with Teams Rooms on Android devices.

Implementation Requirements

To enable your Teams Rooms device to use SIP and H.323 calling:

  1. The Teams Rooms resource account must have a Teams Rooms Pro license assigned.
  2. You must have an agreement with one of the certified Cloud Video Interop providers (CVI) which offer SIP & H.323 calling capabilities, reference that link for which providers enable calling from Teams Rooms.
  3. Information from your CVI provider on the "AreaCode" to use when configuring SIP & H.323 calling in Microsoft Teams. The "AreaCode" may match the "TenantKey" used when you configured CVI.
  4. You must create and assign a Teams Room Video Teleconferencing Policy your Teams Rooms resource accounts.

How to configure a SIP & H.323 Video Teleconferencing Policy

The Teams Room Video Teleconference Policy enables SIP & H.323 calling on Teams Rooms devices. You must first create a new Teams Room Video Teleconferencing policy and set the parameters to enable SIP and H.323 dialing. If you have multiple CVI providers in your tenant, you can configure multiple Video Teleconferencing policies, and assign different policies to different Teams Room resource accounts. Although you can only have one Global policy, individual policies take precedence if directly assigned to an account.

Note

These features can only be configured using Microsoft Teams PowerShell module.

Creating a new Teleconference Policy

If necessary, update or install the Teams PowerShell module and sign in to Teams PowerShell following these instructions: Microsoft Teams PowerShell.

Once signed in, you need to create a new Video Teleconferencing policy, using the Set-CsTeamsRoomVideoTeleConferencingPolicy cmdlet. You can create a single "Global" policy, which applies to all Teams Rooms resource accounts, allowing SIP & H.323 calling on all devices. Or you can create an individual policy, which needs to be assigned to each Teams Rooms resource account you want to have this ability.

Global Policy Example:

New-CsTeamsRoomVideoTeleConferencingPolicy -Identity Global -Enabled $true -AreaCode "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxx" -ReceiveExternalCalls Enabled -ReceiveInternalCalls Enabled

Individual Policy Example:

New-CsTeamsRoomVideoTeleConferencingPolicy -Identity "TurnOnSIPH323" -Enabled $true -AreaCode "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxx" -ReceiveExternalCalls Enabled -ReceiveInternalCalls Enabled

Important

The xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxx entry in the command is a placeholder for a GUID that is provided by the CVI provider that offers this feature.

Note

If the Policy is set to Enabled, then the AreaCode parameter is required. This value is provided by the CVI provider that offers this feature. ReceiveExternalCalls and ReceiveInternalCalls parameters are disabled by default. They take only two values either Enabled or Disabled.

Viewing existing or newly created Teleconference Policies

Once you create a Teams Room Teleconferencing policy in your organization, or to view all existing policies, run the Get-CsTeamsRoomVideoTeleConferencingPolicy cmdlet.

Get-CsTeamsRoomVideoTeleConferencingPolicy

Assigning a Teleconference Policy

To apply a policy to a Teams Rooms device, you need to run the Grant-CsTeamsRoomVideoTeleConferencingPolicy cmdlet.

Grant-CsTeamsRoomVideoTeleConferencingPolicy -Identity "<resource account UPN>" -PolicyName "TurnOnSIPH323"

Modifying a Teleconference Policy

If you wish to modify an existing policy, you can do so with the Set-CsTeamsRoomVideoTeleConferencingPolicy cmdlet. This example blocks external inbound calling.

Set-CsTeamsRoomVideoTeleConferencingPolicy -Identity `TurnOnSIPH323` -ReceiveExternalCalls `Disabled`