Someone is welcome to disagree, but I don't think you will have good
luck with this. Faxing can work because there is an actual protocol for
it (t38). Trying to send modem data over voice codecs does not work very
well.
On 5/24/2011 8:43 AM, R. Benjamin Kessler wrote:
All --
We have a small SIPX system using SIP trunks over the Internet for
PSTN access.
We have a new requirement to be able to support an analog modem (or
two) and I was wondering if anyone has done this with any kind of
success already.
The modems would be used to dial-up to remote routers, etc. to access
device consoles out-of-band so the speed requirements are low (e.g.
9600 baud).
If anyone has done this (or something similar) please let me know --
I'm interested in details like, ATA(s) used, and any particular tricks
that had to be performed to make things work.
I realize that I'm asking for something that is sub-optimal, I'm just
trying to avoid a monthly charge for a POTS line that may only get
used twice a year.
Thanks,
Ben
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