Cannot sign in to a Poly CCX 500 desk phone with the Teams SIP Gateway

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Regular Contributor

The Poly CCX 500 was recently added to the list of devices supported by the Teams SIP Gateway. Presumably this is because they do not function properly with the Teams app installed on them. I am eager to resolve the issues my users are facing, but I haven't had any success enrolling these devices.

 

When I put the device on my VLAN with the SIP Gateway provisioning server URL set in the DHCP option 160 and perform a factory reset, the device appears to get successfully provisioned, but after setting the admin password, accepting the EULA, and selecting the language and time zone, I'm prompted to choose between "Skype for Business", "USB Optimized" and the "Microsoft Teams" profile (which is obviously not what I want, since that would put the Android Teams app back on it).

 

If I choose USB Optimized. the device briefly shows the USB Optimized interface, and then reboots. After that, it does show the Teams logo wallpaper, so that seems promising. However, there is no sign-in code displayed, and if I try to provision the device with the verification code generated in the Teams Admin Center by dialing *55* and the code, I just get a fast busy signal.

 

We've successfully onboarded a VVX 411 device, so I don't think it's a firewall issue. Others are reporting the same issue in the Poly forums. Has anyone successfully deployed a Poly CCX 500 device with the Teams SIP Gateway?

2 Replies

@Ryan Steele 
Your experience is exactly the same as ours.  Still haven't figured out how to get one of these signed in. 

Can you link me some of the poly forum posts you are seeing?