I don't like to be the naysayer here, but any time you are trying to run a modem device (modem, POS, fax, etc) across a packetized connection, you are asking for troubles.
When these devices connect to each other, they negotiate a carrier signal, which is an analogue signal that is modulated in order to send the data between the endpoints. When this signal is interruped (by static on the line, poor line conditions, or a network in the middle that chops it up like a Ginsu knife), the endpoints record that as a problem. Too many of these, and the carrier is lost. I like to tell people to picture a skipping rope. Each modem holds one end of the rope, and then shakes it to signal the far end. Now imagine slicing the rope into dozens of pieces, putting each piece in a separate envelope, and mailing them to the other person. That's what VoIP does to analogue signals. It's actually amazing that any sort of modem communications is possible across network connections. Anyhow, that doesn't solve your problem, but it's why it can be so hard to make these kinds of devices work across a VoIP connection. Jim Martin Glazer wrote: > Hey All, > > Has anyone done this internally and not over the internet - > using an ATA to connect a fax machine and POS terminal to a local > asterisk server. Bandwidth shouldn't be an issue and using ulaw as > the codec would probably be best. > > Any thoughts/comments on reliability or feasibility? > > I'm trying not to have to run copper between 2 buildings > which have a fiber network connection. > > Thanks > > Martin > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] For > additional commands, e-mail: [EMAIL PROTECTED] > > > No virus found in this incoming message. > Checked by AVG. > Version: 8.0.100 / Virus Database: 270.4.1/1510 - Release Date: > 6/19/2008 3:21 PM --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
