SSL certificate updated now Yealink cannot download the phone book

[ben rooke]

Hi All.

I have updated the SSL certs on a few of our instances and we are now seeing that Yealink devices are showing errors saying the phone book cannot be downloaded. re-provisioning does nothing but removing the trusted certs option on the device itself works. Is there any other way around this? and why is it doing it as the certs I have imported ARE trusted,

 

[AWS2P]

Surely because they are not supported by yealink phones

 

[Saqqara]

List of ssl certificates supported by Yealink phones - http://support.yealink.com/faq/faqInfo?id=691

if your ssl certificate is not in the list, the only solution is removing the trusted certs option on the device