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Incoming calls can’t hear caller FIXED

Posted: Sat Jul 13, 2019 7:24 am
by epetru
I installed a new telo a couple weeks ago and when I received my first call I couldn’t hear the caller’s voice. They could hear me. I called Ooma support and they told me that there are many incompatible wireless phones that will not work with Ooma. They suggested that I try using a wired phone for troubleshooting but I’m am many miles away from the Ooma. I am using the Panasonic KX-TG885 DECT 6.0 Bluetooth 5-Handset Phone Bundle from Costco.

Anyway to make a long story short, I am on Frontier FIOS, so I added the Ooma to the DMZ and configured the router to enable SIP bypass, and now it all works fine. I don’t know which of the 2 settings fixed it or if both were needed.

I hope this helps others experiencing this problem. Ooma support never suggested looking at these option. The SIP setting will vary by router type.