Polycom Trio 8800 Visual+ with Office 365 and PSTN

10 Oct

As part of a longer plan to move away from an on-premise PBX and convert all meeting rooms into fully fledged VC rooms I explored a few devices that are available for this.

  • SurfaceHub – Fantastic but pricey, but by far the best device here, simple to use and just works out of the box ~$14k if you can get hold of one, but might be worth waiting now for V2.
  • Ascendo Vibe – Not bad, has touch screen, Windows 10 under the hood, bit glitchy and Miracast currently has a known issue and was unusable and laggy ~$4k
  • BlueJeans – Software solution I watched on Dolby hardware. Supported dual screens and web-based screen scaring meant it worked on any device. Requirement for an on-premise server to manage part of this setup meant it was never really an option.
  • PolyCom Trio 8800 – The option I ended up with. You use your own TV, no touch screen of course, but supports AirPlay and Miracast, works as a Bluetooth speaker phone, webcam included, displays upcoming meetings on the display, simple to use, background and phone can fully customised and branded ~$1500. At this price I can kit out almost all the meeting rooms for the same price as one Surface Hub unit.

For the Trio 8800 (Note that the 8500 version even though it uses the same Visual+ box does not support Miracast and Airplay) I simply purchased a “Common Area Phone” license in 365.

Next was tricky, all I needed was a calling plan to allow dial out via PSTN, but this is bought via the Add-ons section which I didn’t have showing. (Using calling credits would be preferred, there is a UserVoice thread for this so please Vote up!)

After a case with MS, it turns out that I need to buy a qualifying license first via MS and then I have the options available, all my licenses are purchased via a partner and so I could buy the calling plan, very odd.

Please be aware that in order to see the Add-ins button , you need to have at least one of the main subscriptions (Business Premium, Business Essentials, Enterprise E1, E3, E5, ProPlus directly from us – Admin > Billing > Purchase services.
Even if you have any of the subscriptions above purchased from a partner, the Add-ins button will not be available in the portal.
If you have any questions or concerns, please let me know.

The room itself already existed in 365 so I had to assign a password to this account and then assign the correct licenses:

$credential = Get-Credential
$session = New-PSSession -ConfigurationName Microsoft.Exchanged -ConectionUri https://outlook.office365.com/powershell-liveid/ -Credential $credential -Authentication Basic -AllowRedirection
Import-PSSession $session
$passwd = ConvertTo-SecureString -String  -AsPlainText -Force
Set-Mailbox -Identity “” -EnableRoomMailboxAccount $true -RoomMailboxPassword $passwd
Remove-PSSession $session