I have 12 UC520 units linked together over a DMVPN with IPSec tunnel protection.  There is a 2901 router at the main location that is used as the hub.  The problem is, if the hub gets reloaded, the tunnels on the other ends do not come back up automa...

Can you use any of the SPA500 series phones with an SRST gateway like the 1861 in SCCP mode?Or would you be forced to use SIP mode for this?  Or would they even work with it?

We have 3 UC520 units that are linked together over a WAN.If one location calls another and gets put on hold, the hold music starts out really choppy for approximately 30-45 seconds and then clears up.This does not happen if you call the location fro...

I currently have an RCC setup on an OCS 2007 R2 server with a Cisco UC520 running 8.0.1.When an incoming call is made, Office Communicator shows "Unidentified Caller".  Also, when making an outbound call, as soon as the call is connected, the caller ...

Several of the ringtones packaged with the 8.0.0 and 8.0.1 software releases sound awful compared to the ones included in the 7.1.3 release.  They pop and cutoff and have a bad echo.I don't think this is a terrible issue by any stretch of the imagina...