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Trio 8800 unable to join Teams meetings

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Occasional Contributor

Trio 8800 unable to join Teams meetings

Hello,

I have Trio 8800.

also, I have only SFB on-premise. I cannot join meetings with MS Teams. I tested several meeting scenarios:

1.Trio on-prem account (mycompany)  --> another on-prem account (another company) = can join meeting.
2.Trio on-prem account (mycompany) --> Another company MS Teams account = can not join meeting
3.Trio another MS Teams account --> mycompany on-prem account = can not join meeting
4.Trio another company MS Teams account --> another company MS Teams account = can join meeting.
5.Trio on-prem account (mycompany) --> another copany on-prem account (another company)with hybrid = can join meeting.
6. Trio another company on-prem account (another company)with hybrid --> another company on-prem account = can join meeting.

 

 

so,My on premise sfb account can join meeting with:

1.another company's on-prem user meetings.
2.another companys on-prem sfb in hybrid mode

problem is only with MS Teams meetings.please see attached logs(at this moment in Trios was logged in teams account and we cannot join meeting with on-prem sfb account)

any ideas?

thank you

Message 1 of 5
1 ACCEPTED SOLUTION

Accepted Solutions
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Polycom Employee & Community Manager

Re: Trio 8800 unable to join Teams meetings

Hello @Davit Ubilava 

 

I am quite sure this is a known issue and Microsoft is aware (20150767).

 

  • a meeting organizer cannot be homed on-prem in this kinda scenario

Symptom

================

Trio 8000 phone device cannot join Teams meeting

 

Analyzing

================

Per checking, the device account <retracted> is homed online with Island mode. However, the sample Teams meeting organizer <retracted> is hosted by Skype for business on premise server. We have similar internal escalation to the Teams engineering team, and it was confirmed by the product team, this is a not supported scenario, the Teams meeting organizer must be hosted on Online.

 

The SIP INVITE from Trio phone gets delivered to the on-prem focus because the meeting organizer is hosted on-prem. Therefore, the Teams gateway can't be invoked and thus you see 413 error returned.

 

This is mentioned in our docs that the meeting organizer must be hosted online in order for the gateway to work:

 

https://docs.microsoft.com/en-us/microsoftteams/migration-interop-guidance-for-teams-with-skype

 

Interop between Teams and Skype for Business users is only possible if the Teams user is homed online in Skype for Business. The recipient Skype for Business user can be homed either on-premises (and requires configuring Skype for Business Hybrid) or online. Users who are homed in Skype for Business on-premises can use Teams in Islands mode (defined later in this doc), but they cannot use Teams to interop or federate with other users who are using Skype for Business.

 

Suggestion

============

To make Trio phone join a Teams meeting, the possible option is to move the organizer to SFB online, change the Trio phone to Teams mode or dial into the Meeting.

 

The above is based on the assumption that you are seeing the same or similar scenario.

 

Anything else would require you to open a case with Microsoft.

 

Best Regards

 

Steffen Baier

----------------

Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's

View solution in original post

Message 4 of 5
4 REPLIES 4
Highlighted
Polycom Employee & Community Manager

Re: Trio 8800 unable to join Teams meetings

Hello @Davit Ubilava ,

 

Welcome back to the Poly Community.

 

A simple question:

 

  • Is this a Trio running in Lync Base profile aka Skype for Business
    or
  • Is this a Trio running in Teams base profile


Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

----------------

Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 5
Highlighted
Occasional Contributor

Re: Trio 8800 unable to join Teams meetings

Hello,

 

Trio is running in Skype for Business profile.

Message 3 of 5
Highlighted
Polycom Employee & Community Manager

Re: Trio 8800 unable to join Teams meetings

Hello @Davit Ubilava 

 

I am quite sure this is a known issue and Microsoft is aware (20150767).

 

  • a meeting organizer cannot be homed on-prem in this kinda scenario

Symptom

================

Trio 8000 phone device cannot join Teams meeting

 

Analyzing

================

Per checking, the device account <retracted> is homed online with Island mode. However, the sample Teams meeting organizer <retracted> is hosted by Skype for business on premise server. We have similar internal escalation to the Teams engineering team, and it was confirmed by the product team, this is a not supported scenario, the Teams meeting organizer must be hosted on Online.

 

The SIP INVITE from Trio phone gets delivered to the on-prem focus because the meeting organizer is hosted on-prem. Therefore, the Teams gateway can't be invoked and thus you see 413 error returned.

 

This is mentioned in our docs that the meeting organizer must be hosted online in order for the gateway to work:

 

https://docs.microsoft.com/en-us/microsoftteams/migration-interop-guidance-for-teams-with-skype

 

Interop between Teams and Skype for Business users is only possible if the Teams user is homed online in Skype for Business. The recipient Skype for Business user can be homed either on-premises (and requires configuring Skype for Business Hybrid) or online. Users who are homed in Skype for Business on-premises can use Teams in Islands mode (defined later in this doc), but they cannot use Teams to interop or federate with other users who are using Skype for Business.

 

Suggestion

============

To make Trio phone join a Teams meeting, the possible option is to move the organizer to SFB online, change the Trio phone to Teams mode or dial into the Meeting.

 

The above is based on the assumption that you are seeing the same or similar scenario.

 

Anything else would require you to open a case with Microsoft.

 

Best Regards

 

Steffen Baier

----------------

Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's

View solution in original post

Message 4 of 5
Highlighted
Occasional Contributor

Re: Trio 8800 unable to join Teams meetings

Thank you for quick reply

Message 5 of 5