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.
#87747 by DaveWV
Wed Sep 28, 2011 10:17 pm
I have tried everything I have found in the forum and I cannot receive or send a fax. Anyone have any suggestions!!
#87752 by thunderbird
Thu Sep 29, 2011 4:44 am
DaveWV wrote:I have tried everything I have found in the forum and I cannot receive or send a fax. Anyone have any suggestions!!

Some back ground:
viewtopic.php?f=8&t=12241
by Bobby B » Mon Aug 15, 2011 4:17 pm
“A few weeks ago all Telos received fax tone detection support, which allows the Telo to change to an uncompressed codec when a fax call is detected. As a result of this change, the manual fax mode parameter is no longer needed. We're in the process of updating the documentation to reflect this change”.

Try testing with the HP Fax test number:
I tried the HP Fax Test number 1-888-473-2963 fully expecting it to not to work.
But it worked fine. Within five minutes I received a return Fax from the HP Fax Test number.

I have read where some people after connecting their Fax machine directly to the Ooma device Phone port, with nothing else connected, allows the Fax to work. (But mine goes all the way across the house with other phones connected, without any problems).

Others have said that after making adjustments to the Quality of Service settings in Ooma Setup, (and their router, if the Ooma device is connected after the router), their Fax began to work properly.

Also try dialing the complete number including the 1, example 1-xxx-xxx-xxxx. (Also try dialing the number 1-xxx-xxx-xxxx-# adding the hash mark to speed dialing). Remember that with Ooma, any call in the USA isn't long distance. For some Fax machines you have to add a pause or two after dialing the 1.
If you have ten digit dialing enabled in My Ooma, https://my.ooma.com/system, you can dial without using the 1 for long distance numbers.

A DSL filter, installed in the reverse direction, in the phone line going from the Ooma device to the Fax phone port, has helped some people.
#87773 by DaveWV
Thu Sep 29, 2011 2:08 pm
:P Thanks for the help! I hooked the Ooma up after the router and everything seems to be working fine now! Thanks again for the help!!

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