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PSTN limit. 50 calls per conference RRS feed

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    Hello!

    Recently, conferences and very popular conferences with access via the PSTN number have become more frequent. With the growth of conference participants, they faced a limit of 50 phone calls per conference. then, after entering the PIN code, the system displays a message - data has not been received and the user is not included in the collection.

    There are no problems for people who go through the web or the client link.

    Can you give a hint - is it possible to remove the limit of 50 calls to the conference?

    Wednesday, April 8, 2020 1:10 PM

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    Hi Akhmerov88,

    You could execute the command Get-CsConferencingPolicy to check the value of MaxMeetingSize. This parameter Indicates the maximum number of people who are allowed to attend a meeting. This value can be any 32-bit whole number (any value between 1 and 4,294,967,295), but the recommended size is between 2 and 250.

    You can change the value by running this command: Set-CsConferencingPolicy -MaxMeetingSize 100.

    In addition, you can go to Skype for Business server control panel > Conferencing > CONFERENCE POLICY > change the value of Maximum meeting size.

    Best Regards,
    Sharon Zhao

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Thursday, April 9, 2020 2:41 AM
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    Hello!

    I change  MaxMeetingSize - 1000, but the problem persists :(

    User who join with web url - no problame

    user who join with PSTN - max 50 calls, and after 50 calls lync does not accept conference code

    Thursday, April 9, 2020 4:13 AM
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    Hi Akhmerov88,

    The official document only mentions the maximum size but not the PSTN dial-in number. I did not find other methods to modify the value.

    I will keep paying attention to this problem. If there is any update, I will share with you. The same, if you have any update, please feel free to share with us. Thanks for your understanding.

    Best Regards,
    Sharon Zhao

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Friday, April 10, 2020 9:09 AM