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Re: [hylafax-users] Unreliable fax services via VoIP connection



On 7/3/06 1:49 AM, Ivan Petrov wrote:
I can confirm. I am sending/receiving a lot of faxes using VoIP lines and hylafax. Good to bad ratio isn't that bad ones at all.

Thanks for keeping this discussion going a bit, interesting stuff. I can confirm that my provider uses lossless codecs only, they prefer G711-alaw (I'm in Melbourne, Australia btw). Our bandwidth is not saturated, in theory we have more than enough bandwidth to handle the maximum number of calls our PBX can handle.


The success to failure ratio receiving faxes is pretty well in favour of success, especially if you include cases where only a small, insignificant part of the fax isn't received (e.g. the transmission times out after most of the data has already arrived).

The worrying part is that particular customers can never connect and it's important to the business that they are able to. It's not acceptable to us that we lose any faxes at all. It's difficult to gather information about the connection at the customer's end so I can't really identify likely culprits at the customer site.

Having said all this, sending outgoing faxes through VoIP (via a regular fax machine) is no problem. The virtual PRI is very reliable, just not quite reliable enough for inbound fax in some cases.

In any case, the phone company are coming tomorrow to install some copper wire for me.

Thanks again,

--
Lucas

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