This forum includes tips for maintaining the best audio quality possible with the Ooma System. If your Ooma system is having issues with dropped calls, static audio or echo, look here for assistance.
#100776 by thunderbird
Thu Sep 27, 2012 5:28 am
For anyone that has an Ooma Telo Firmware Version: 60080, that is having Quality of Service (QoS) problems, have you gone into Ooma Setup>Tools>Port Scan and accomplished the Basic Scan?

Information only:
Mine shows "Denied Ports : UDP 53". But my Ooma Telo works fine anyway.
#106703 by spl21719
Fri Feb 15, 2013 10:54 pm
What device is the port scan actually testing?

For Basic Scan say my WAN IP address is and my gateway (ISP's gateway) is Is the Basic scan actually scanning my Ooma device to see if those ports are accessible? Why does it say Ports Status for Is the scan against the ISP's gateway? I connected the Ooma Telo to my cable gateway but turned the gateway into a bridge so then the Ooma is getting the WAN IP. See the output below. If Ooma is directly interfaced to the WAN, why are all the ports denied?

For Advanced Scan it says port status for Is that the server being scanned or the server that is scanning my ooma device?

Output from Basic Scan:
TCP and UDP Ports Status
Ports Status for
Denied Ports : TCP 53,TCP 443, UDP 53, UDP 123, UDP 514, UDP 1194, UDP 3386, UDP 3480, UDP 10000, UDP 10500, UDP 11000, UDP 11500, UDP 12000, UDP 12500, UDP 13000, UDP 13500, UDP 14000, UDP 14500, UDP 15000, UDP 15500, UDP 16000, UDP 16500, UDP 17000, UDP 17500, UDP 18000, UDP 18500, UDP 19000, UDP 19500, UDP 20000
#106704 by thunderbird
Sat Feb 16, 2013 3:45 am
First the Port scan feature has never been fully developed yet.

The Basic port scan is supposed to be looking at the ports that Ooma needs to operate.

From: ... s#anchor-0
Ooma uses the following application ports for outbound data and voice traffic:
UDP 53, UDP 123, UDP 514, UDP 1194,UDP 3386, UDP 3480, UDP 10000-30000, TCP 110, TCP 53 and TCP 443.

But as you can see, the basic port scan doesn't list all of the ports needed.

I believe the Basic port scan is looking at the device connected directly ahead of the Ooma Telo, in my case my router.

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