I just updated them Weds night and it happened again today.
Time Warner can't adjust anything in the modem that supplies the dial tone. I talked to one of there tech's, the modem is what supplies the dtmf tones. I'm going to put the bcm into monitor mode, the customer with tell me when it happens next and I'll check to see if the correct extension was dialed by the bcm. They have one customer that it has happened to more than once, I'll have to test with them.
Any other ideas from you all?