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- Try inserting the card into the other slot. Also, you will have to reset the configuration to factory defaults in order to remove the auto populated ports and restore the old configuration again.
ISDN related issues
SIP related issues
Faxing
Where can I find a guide to configure a fax solution for Lync?
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Check clock source setting.
Audio Quality
Call Completion issues
Call Presentation
Certificate Related
Lync Deployment
Lync Operational