Looking for a reliable VoIP Fax Solution?
Wait no longer. The Sangoma Fax Sync Cable can help.
All of you VoIP engineers, installers and end users have heard it, “Keep your faxing off of your VoIP system”
And for good reasons. Fax over IP historically works about 50% of the time, leaving most users scratching their heads as to why.
Let’s put it this way, when someone sends an email and the packets are interrupted, say one or two drop out, the email recipient simply sends a request to the sender, asking for the lost packets, the sender sends those packets again, the recipient re-arranges them and you have your email.
With VoIP on a SIP call, if packet loss occurs, the users may hear a bit of broken silence on the line for short periods of time, simply because voice traffic is considered “real time”. With faxing, if packet loss occurs, since fax machines are considered “dumb terminals” in the VoIP world, many times the fax never even makes it to the fax machine with no alert or notification, or the fax machine displays an error instead of the fax.
For companies conducting their main portion of their business over faxing, this is unacceptable. For health care applications where faxes may be considered “mission critical”, this may be detrimental to a patient’s health.
As you can see there are plenty of applications that are using VoIP and trying to successfully integrate their fax machines into their VoIP system and make it work every time. Sangoma technologies have designed a Sangoma Fax Sync Cable to do just that. Sangoma states that their “Faxing solution works 99 % of the time.”
To start, you’ll need a few items:
Here’s how it works:
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If the fax comes in to through a voice T1 and gets handed off to an analog card, where does the VoIP come in?
Advantia,
The solution consists of a T1 Sangoma card and FXS Sangoma card installed into a VoIP IP PBX. The PBX and asterisk based software running on the PBX simply passes-through the fax from the PRI to the analog card. This pass through is done at a 99 percent success rate because the sync cable is clocking the timing from the PRI to analog card. You could also perform this solution with , lets say a Linksys spa-2102 (suggested for faxing), but the success rate of faxing is cut in half. This is the most simplistic form of intergrating a fax machine with a VoIP solution.
Hope this helps.