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Vonage claims to work with all fax machines. However, some customers
report having had trouble sending and/or receiving faxes with Vonage
and other voice-over IP (VoIP) providers. The difficulties are a
frequent topic in help forums and even made the Wikipedia entry for
Vonage. Frustratingly, the problems have been intermittent and hard to
diagnose, and some customers have resorted to buying a new fax machine
that better-suits Vonage’s optimum specifications. The company’s
official “help” resource suggests lowering the baud rate on the fax
machine to 9600 (or “slow”) as well as disabling the machine’s ECM
(error correction mode) feature, if applicable. Also, make sure the fax
machine is on the “standard” setting. Some users have had good luck
adding *99 before dialing, as that resets the bandwidth for that call. Vonage
also allows its customers to send faxes over the Internet, without a
fax machine, by uploading documents to the Vonage web site. There is no
additional charge for this service if you’re on the company’s
“Unlimited Plan.” Per-minute customers will see fax use applied toward
their monthly minutes allowance. Hope this helps.
I also have vonage and this fax macine - the incoming fax was going to vonage answering machine.
I went to setup (that little button above and to the right of the OK button to "basic fax setup" and changed my rings to answer from 5 to 2. This will work for me, because I only set it to auto answer when I know a fax is inbound - you might want to adjust so you can aswwer a call if you do not have a dedicated fax line.
You may not need a separate fax line from Vonage. If you don't need a dedicated fax line, you can try changing the "Bandwidth Saver" settings on your Vonage voice line from your account on the Vonage website. Perform the following:
1. Login to your Vonage account online and click the "Features" tab. 2. Scroll down to the "Bandwidth Saver" link and click on the "Configure" button. 3. You will see a scrollbar with 3 settings: 30kbps, 50kbps and 90kbps
NOTE: My "Saver" was set to 90kbps (Highest Sound Quality) by default.
4. Click on 30kbps (Normal) and click "Submit". 5. Wait about an hour before testing as it could take that long for the change to take effect. 6. Send a test fax to the HP fax test service at 1-888-hpfaxme (1-888-473-2963).
NOTE: This is a GREAT service provided by HP. If your fax goes through correctly, you will receive a return fax within five minutes.
We upgraded to Verizon FiOS and never thought the increased upload speed (4mbps) would present an issue sending faxes. WRONG. We never had fax issues with DSL, Comcast or even Broadstripe VOIP service but for some reason Vonage + FiOS = no fax. That is until we set our Vonage VOIP sound quality to "Normal". Our phone voice quality has been much more reliable since throttling back. This sentiment has also been shared by other Vonage users who have experienced echoing and noise when utilizing the higher quality settings.
Your phone coversations may not have FM quality sound but they will have AM quality and usually that is just fine.
If your fax machine has a Telephone Answering Device (TAD) setting, you can share your voice line with your fax machine and be able to receive faxes and voice messages. Hopefully this will work for you.
Only real solution I know would be to get rid of Vonage. All experiences with Vonage has left a bad taste in my mouth. Regardless of your broadband speed, Vonage uses open internet and is subject to network problems. Fax's require Real-Time communication/transmission control, which is, thus far, not available with Vonage.