I have a customer with all IP Phones and Comcast Analog lines They have been having intermittent problems with the outside lines Comcast came out and did not find any thing on there end

both of these lines are stand alone lines no call forwarding or hunting with carrier when there in use you should get a busy tone if you the 2nd caller if no one is on the line they go to a voicemail box

I remember working at this site a while back where line 9 was busy but no one was on it i think it was locked up by one the voice mail ports


I remember upgrading the software thinking that this would resolve issue

I went back out there yesterday they were complaining about a similar issue with line 1 & line 9

the software was at 8.65 I was able to upgrade to 10.65

I was looking at the field complaints and they seemed to mention the same or similar field complaints in all the releases