TELECOM Digest OnLine - Sorted: Re: FAX vs VOIP

Re: FAX vs VOIP

Lonewolf (Efudd@hotmail.com)
Sun, 05 Dec 2004 12:14:32 GMT

I'm on the repair side of VoIP and over the past year or so I'm seeing
quite a few installations using T.38 faxing with VoIP. It appears to
becoming fairly popular and aside for some verdor specific issues, it
appears to work quite well.

Lisa Hancock <hancock4@bbs.cpcn.com> wrote in message
news:telecom23.579.14@telecom-digest.org:

> John McHarry <mcharryj@bellsouth.net> wrote

>> I believe the issue with FAX over VOIP is that VOIP uses lossy
>> compression that does not treat FAX modulation gently. This tends to
>> be a problem over any compressed link.

> For those who don't know, there are two types of data compression
> techniques. One type preserves 100% of the original data; the other
> "lossy" accepts some loss of accuracy for increased compression
> efficiency. (Others can explain data compression better than I can.)

> I still use dial-up for certain connections, and even if I had VOIP I
> would still need to do so. I wonder if I even could.

> While my arrangement is growing rare these days, using fax machines as
> dial up is not. How do businesses that depend on VOIP use their fax
> machines?

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