Hi,I am trying to upgrade the Firmware of my SPA525G2 from 7.5.2 to the latest one, however when I follow the instructions on logging into the Web Interface and click on the Firmware Tab, UI am unable to do so. When I login to the web interface there...

Hi,I have a SMB customer who currently use a UC320W and when customers call their phone number (PSTN not VoIP) and the auto attendant kicks in, the caller is unable to hear anything, it is so soft it doesn't sound like anyone is speaking. I have trie...