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VS4000 - Phantom Calls

Occasional Visitor

VS4000 - Phantom Calls

Hello,

I have a customer with a VS4000, and they are getting an incoming call notification every one to two hours. I believe it is coming from the network somehow, but I'm working with the IT department and niether of us knows where it could be coming from. This unit is set up with ISDN and IP connectivity. Any ideas what may be happening?

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