I have a UC520 that is currently in production.  For some reason, they can not do ad-hoc conferencing to any long distance calls; they tell me they hear a message that says "conference cannot be completed on line".Would this be a system message or po...

Can the UC540 be configured for SLA Internet failover, and has anyone ever configured this?  Thanks.

When you go off hook on any of the phones, you here a standard dial tone.  When you select 9, you here a second dial tone for the PSTN.  I just got a request from a client to switch the roles of the tones, in other words make the second tone when you...

I'm having an issue concerning a Polycom connected to an FXS port on a UC560.  I configured the appropriate SCCP configuration to give the Polycom conferencing features and it works fine (snippets of the configuration below).voice-port 0/0/2 timeouts...

UC540, got a request to have any inbound calls to a specific DID forwarded to a different phone number outside the system between the hours of 4:30 am and 6:30 am.  No one would be in the office to manually forward the calls at that time, but is ther...