Hi,We are installing an UC560 T1E1 K9 and some IP Phones, but, we are having troubles to install IP Phones SPA 303 and SPA 501 at remote sites trough a VPN. The IP phones stay downloading a XML file, while a 7911 IP Phone is registered without proble...

Hi,Actually a customer has a troubleshooting with his UC-560, this device has a VIC2-4FXO card receiving 4 lines from the PSTN, the Inbound calls from the PSTN have a FM Radio Noise, we can hear multiple stations radios when the call is answer. What´...