Hi, I was wondering whether anyone has any input into the reliability of faxing (over a PRI) using spandsp and rxfax. 99% of times this is a reliable combination - we use it almost exclusively, but there seem to be certain fax devices which have problems talking to us. Most notably fax modems, and a couple of HP multi-function devices. I have enabled full tracing of these problem devices, and generally find that they will not train at the lowest level, but sometimes will manage to send 90% of a page before failing. Any pointers on how to diagnose or improve this would be appreciated. Regards, Steve
Steve Davies wrote:> Hi, > > I was wondering whether anyone has any input into the reliability of > faxing (over a PRI) using spandsp and rxfax. > > 99% of times this is a reliable combination - we use it almost > exclusively, but there seem to be certain fax devices which have > problems talking to us. Most notably fax modems, and a couple of HP > multi-function devices. >SpanDSP does very little or no error checking, when an error is encountered, it will fail.> > Any pointers on how to diagnose or improve this would be appreciated. >Install HylaFAX and iaxmodem on your Asterisk box. Doug -- Ben Franklin quote: "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."
On 7/10/06, Doug Lytle <support@drdos.info> wrote:> > > > Any pointers on how to diagnose or improve this would be appreciated. > > > Install HylaFAX and iaxmodem on your Asterisk box. >Thanks, I will do. I assume that iaxmodem talks to the PRI, and then HylaFax talks IAX to asterisk? Any downsides/gotchas to this that I should be aware of? Regards, Steve
Steve Davies wrote:> > I assume that iaxmodem talks to the PRI, and then HylaFax talks IAX to > asterisk? Any downsides/gotchas to this that I should be aware of?No, iaxmodem gives HylaFAX software modes that can also communicate with Asterisk. From the iaxmodem home page: IAXmodem is a software modem written in C that uses an IAX channel (commonly provided by an Asterisk PBX system) instead of a traditional phone line and uses a DSP library instead of DSP hardware chipsets. IAXmodem was originally conceived to function as a fax modem usable with HylaFAX <http://hylafax.sourceforge.net>, and it does that well. However IAXmodem also has been known to function with mgetty+sendfax and efax. Doug -- Ben Franklin quote: "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."