[Reminder] Security Alert Relating to TLS 1.2 and Microsoft O365

Polycom Employee & Community Manager

[Reminder] Security Alert Relating to TLS 1.2 and Microsoft O365

Microsoft O365 Will Stop Support for TLS 1.0 and 1.1 in October of 2018

On October 31st, 2018, Microsoft Office 365 will no longer support the use of TLS 1.0 or 1.1 for communications. Once Office 365 deprecates support for these protocols, all communications to and from Office 365 servers will need to use TLS 1.2 and Polycom CX500, CX600, CX3000 will no longer connect or be supported.


Devices will not register to any Skype for Business server if TLS is updated to TLS 1.2


If upgrading to TLS 1.2 using Skype for Business Servers (on-premises), the additional devices listed below will no longer be able to register to Skype for Business or be supported. Compliance requirements such as Payment Card Industry Date Security Standard (PCI-DSS) will require that customers implement a more secure encryption protocol – TLS 1.1 or higher (TLS v1.2 is strongly encouraged) by June 30th 2018 in order to meet the PCI Data Security Standard (PCI DSS) for safeguarding payment data.


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Impact and Risk


Polycom is investigating and will continue to investigate all products and product lines to determine if there will be an impact. At this time, it is known that the following products will be impacted by this change in support:


• Polycom CX500 phone

• Polycom CX600 phone

• Polycom CX700 phone

• Polycom CX3000 conference phone

• Polycom CX8000 Skype Room System


See the attached document for more details

Please be aware:

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Questions posted here do not follow Polycom’s SLA guidelines.
If you require assistance from Polycom technical support, please open a
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The above is necessary in order to track issue internally within Polycom.

You are welcome to post more questions or configuration or logs for other community members to look at but if your issue requires a fix via Polycom you must go via the official support structure.

Please ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's

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This forum reply or post is based upon my personal experience and does not reflect the opinion or view of my employer.
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