I have recently purchased x2 Polycom Trio 8500 confrencing phones, upon testing these in way of making a and receiving a call to both of the devices all appears to work fine however with the customers doing a much longer live meeting with the phones they experience jitter on the line, a lot of interferance and the call cutting in and out...
These are the first of these devices for our company as we'd like to explore being ale to role batches of these out in the near future to our offices...these are both using the O365 Cloud Based PBX, maybe there are specific Firewall exceptions which are required to be put in place for these to work? Currently we have the UDP ports 3478 to 3481 open to allow these phones to contact the Microsoft PBX.
Are there any local network settings which are prefered to be set on these confrencing phones to ensure maximum avaiable quality is used when a call is initiated?
Hello @Matt Russell ,
welcome to the Poly Community.
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UC Software 4.0.0 or later via the Web Interface Utilities > Phone Backup & Restore > Phone Backup > Phone Backup. Please rename into .TXT or Zip the file to attach.
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Stating the above I have heard of a small number if Trio 8500 which had issues with their Microphone so I suggest you contact Poly support on this or the reseller who sold these as they most likely need to be RMA'ed.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.