05 Jul '10 19:59>1 edit
Originally posted by sonhouseA PCI card to handle fax signals? Its called a fax-modem and has been around for decades. However thats not quite what you need - though it is really the same hardware concept. The port in question is called FXS. I am still investigating the cheapest options, but I am looking for a 4 port or more card.
Our service is from a Linksys wireless router which has two phone lines added, so we plug the phone into that. When I said a PCI card could be engineered to handle fax signals I was unaware a solution of sorts had been worked out in your asterisk thing. Do you know how much such a beast costs?
Here are some offered by Digium:
http://www.asterisk.org/hardware
Its quite possible though that you can do it all with your linksys. I think what is important is whether or not the codec you are using on the IP phone is capable of handling fax. I'll have to investigate.
What model is your Linksys?
Its probably a SIP capable device, and it might be possible to use another provider (possibly free) in addition to your current one if your current one cant support fax.
You might find this interesting:
http://www.provu.co.uk/pdf/sipura/ip_faxing_sipura_linksys.pdf
It looks like the first step is to set your fax machine to send and receive on its slowest setting.