3CX: Teams Setup

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  • 3CX: Teams Setup
  • 3CX: Teams Setup

    Add Slave Bridge

    1. SIP Trunks

    2. Select + Add Bridge > Add slave

    3. General Bridge Settings

    Name of Bridge: VTS Teams

    Virtual Extension Number: From Voxtelesys

    Authentication: From Voxtelesys

    Remote PBX IP and Port: From Voxtelesys | 5060

    Time between registration attempts (Seconds): 300

    4. Advanced Bridge Settings

    Allow Inbound Calls: Enabled

    Allow Outbound Calls: Enabled

    PBX Delivers Audio: Enabled

    From : Display Name: "CallerName" caller's name (default:From->display name)

    Codec: G.711 U-law

    5. Finish the Bridge setup by pressing OK

    Add Outbound Rule to Teams

    1. Outbound Rules

    2. Select + Add

    3. Configure Rule

    Below is an example rule on how to point calls to Teams with a prefix:

    Rule Name: VTS Slave Bridge

    Calls to Numbers starting with prefix: 8080

    Calls to Number with a length of: 8

    Route: VTS Teams | Strip Digits: 4

    In our example, we could dial 80802048, then the call would go to Teams as 2048, as the 8080 would be stripped off. Our extensions are 4 digits in length. If we are doing a 3 digit extension, the length would be set to 7.

    4. Finish the Outbound Rule by pressing OK

    Add Extension and Routes to a User in Teams

    1. Log in to your Teams account via PowerShell

    See guide here

    2. Add Voxtelesys SBC/PSTN

    If you haven't already set up your Voxtelesys SBC please refer to these instructions.

    • Skip the "Assign DID and Voice Routing to Users" part as you will do that a little differently below.

    3. Add Extension Number to User


    Set-CsUser -Identity “[email protected]” -EnterpriseVoiceEnabled $true -HostedVoiceMail $true -OnPremLineURI Tel:2048

    • For [email protected], set the user's email that you want to assign the caller ID.

    • For 2048, set the user's extension number on the 3CX.

    4. Grant User Access to Voice Routing Policy


    Grant-CsOnlineVoiceRoutingPolicy -Identity “[email protected]” -PolicyName “voxtelesys”

    5. Test calls in and out of Teams/3CX

    Dial the extension/user on Teams with the prefix:

    3CX strips the prefix off and dials the slave bridge.

    Teams can be answered on your desktop or cell phone app.

    Now test call back into 3CX by dialing the extension number (no prefix needed).

    For calls to ring to the Teams client all the time, you can assign the prefix and extension as the mobile number, then select ring my mobile simultaneously on the forwarding rules.

    If you need help configuring your trunk or inbound numbers check out the guides below! More Voxtelesys Portal Guides here!

    For more 3CX Guides, click here!

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