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My early adopter CCX 500 Teams experience in a SfB environment

Occasional Advisor

My early adopter CCX 500 Teams experience in a SfB environment

I've got 80 users all using SfB Online. Knowing that I have to get Teams up and running before the axe falls on SfB Online, I pre-ordered a CCX 500 to see what the voice side of Teams is like. Yesterday I unplugged my trusty VVX 500, converted my account type from Islands to Teams-Only, and switched to my new phone.


The phone booted up to Teams, but then would not let me sign in. I poked in the settings and found that had not picked up the proper VLAN assignment. I guess that CCX phones will need a different or additional setting in DHCP than VVX did.


After setting the VLAN, I was able to sign into Teams. I was also obliged to enroll the phone in InTune because it's an Android device. I subsequently found this blog post and will make the necessary adjustment to my MDM policies so I don't have to do that for every new phone.


I was able to receive calls from both inside and outside my company. I was also able to continue using my Logitech wireless headset that I had previously used with my VVX phone. When it came to placing calls, though, I made the following discoveries:


  1. The lack of BToE means I have to place calls from the tiny screen of the CCX instead of my computer's Teams client. If I "\call Eugenio" from my desktop Teams client, it uses my computer's speaker and microphone. There's no way to tell Teams about the CCX on my desk. I understand that BToE (or BlueTooth, or USB) is a Q2 2020 feature. 
  2. The CCX 500's tiny screen is made much more usable by going into Phone Settings | Accessibility and changing the text size from default to Medium. 
  3. Getting a dial pad to appear on screen requires two precision touchscreen taps. My 71-year-old CEO, who prefers a phone to e-mail, will never find this acceptable. I have to hold out hope for a different model to evolve for this market segment.
  4. My custom dial plan in SfB, which allowed four-digit extension dialing, did not carry over to Teams. This page suggests that Teams dial plans are just like SfB dial plans, but the instructions to go to Voice | Dial Plan did not match my actual Teams Admin Center, which does not have any Dial Plan menu under Voice. I'll have to open a ticket with O365 support for that and see what happens.

I'm curious to learn about other people's experiences, and hear any advice you might have.

Message 1 of 3
Frequent Advisor

Re: My early adopter CCX 500 Teams experience in a SfB environment

Hi JoeNaxion, thanks for sharing your experience. I've requested a CCX 500 demo unit from our vendor, so this information will be helpful. 


Just to make sure you're aware, while SfBO will be retired on July 31, 2021, support for 3PIP phones (like the VVX 500) will continue until July 31, 2023 (per this post on the Microsoft Teams Blog). That being said, there are some major functional limitations. For example, I discovered that when you attempt to turn on Call Forwarding from a 3PIP phone when the user is in Teams Only mode, it appears to succeed but calls aren't actually forwarded. Call Forwarding can only be configured through the Teams client.


Like you, I'm not seeing the Voice > Dial Plan option on the Teams Admin Center. I had a look on the Microsoft 365 Roadmap page and it looks like Dial Plans for Teams is part of a Microsoft Teams - Phone System Administration Enhancements feature that is rolling out this month.

Message 2 of 3
Occasional Visitor

Re: My early adopter CCX 500 Teams experience in a SfB environment

I notice that, unlike the windows client, the call tab on the CCX does not display favorites or speeddials, (and their status).  Likewise It does not seem to display an assistant's 'covered' lines as favorites as is done on the VVX with SfB.   

Message 3 of 3