Olivier Krief wrote:
2006/4/18, Doug Lytle <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>:
Nicholas Kathmann wrote:
>>
------------------------------------------------------------------------
> Both hylafax and * are on the same machine and using the same PSTN
> interfaces (whether T1 or TDM). It uses iaxmodem to communicate
> between the two systems (imagine a softmodem). I'll create separate
> extensions for the iaxmodems, then either map the numbers (or
channels
> off the TDM cards) to dial those extensions. You can also use
the fax
> extension on your default incoming to dial the iaxmodem. Faxgetty
> then listens to the iaxmodem to receive faxes, and uses hylafax to
> send them to the appropriate email addresses, printers, etc. In
most
> cases I'll set up separate PSTN numbers for incoming faxes, but the
> fax extension also works relatively well. The only time I've ever
> seen problems with faxes (or modems) is when trying to use a SIP or
> IAX provider over the internet. To connect the analog fax machines
> I'll either use a linksys PAP2
Please, forgive my ignorance but could you elaborate how your system
would be working ?
I've read a lot about fax and Asterisk but I'm not sure I exactly got
it (specially with iaxmodem and hylafax integration).
Do you mean that :
1. incoming calls would be routed according callee's extension
(extensions are dedicated either to fax or voice applications) and
only with that rule ?
2. you would exclusively connect existing fax machines to SIP ATA's
and hope offering users the ability to fax from software applications,
would decrease SIP ATA's use inconvenients ?
Cheers
Olivier
The incoming call flow (for faxes) would be as follows:
PSTN => TDM Card => Asterisk => iaxmodem => Hylafax => Email user (or
printer)
similarly, sending outgoing faxes can be as follows:
User => Analog Fax => SIP ATA => Asterisk => TDM Card => PSTN
or
User => Hylafax (through email2fax or virtual fax printer) => iaxmodem
=> asterisk => TDM Card => PSTN (read the Hylafax docs to find out about
sending faxes from hylafax)
All of the incoming faxes don't actually go through the analog fax
machine, rather through Hylafax directly to the user's email address or
to a printer. Sending outgoing faxes can be done in either of the ways
above. Once put in and the users are trained, the utilization of the
analog fax machines generally goes down significantly. I've seen
companies consolidate from 40+ analog faxes to less than 20 (large
geographical area) with hylafax and asterisk. On your LAN you should be
able to control voice quality issues to get reliable outgoing faxes.
Incoming calls can either be routed through a separate DID for faxing,
or through the same DID with what I showed you before. Asterisk is able
to tell if the incoming call is a fax or voice, and send it to the fax
extension (iaxmodem in this case) using the fax extension. You can run
more than one instance of iaxmodem on a single machine, routing faxes to
different email addresses from within hylafax depending on which
extension they are received on.
Thanks,
Nick
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