Incoming calls can’t hear caller FIXED

Having trouble placing or receiving calls or using your voicemail system on Ooma Telo VoIP Phones? Post your questions here.
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epetru
Posts: 32
Joined: Mon Aug 10, 2009 9:48 pm

Incoming calls can’t hear caller FIXED

Post by epetru » Sat Jul 13, 2019 7:24 am

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.

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