This is a strange situation for my Intercom. I have had intercom working on my 1022 phones for years and over the past year I have had intermittent issues. At times, I have to reset my router every 2-4 days to make it work again. Othe times it will work for 6-8 months at a time. Any ideas what I might have configured wrong? Can someone share any of the port information or anything else I should have configured in my router? Also, are there specific IP addresses that OBI uses for communications that I should make sure I am not blocking?