I was bored earlier in the week and was on a conference call so I began messing around with the web interface of one of the conference phones I have. Lo and behold, stupidity ensued
www.infiltrated.net/konftel/Enjoy the 4 minute walkthrough. Sent the vendor a quick email, but alas fell on deaf ears. *shrugs* If you have to ask what can you do against this in a test environment, I suggest you read the PTES and OSSTMM documentation over and over again. Title explained the gist of it though