I've been trying to get fax reception to work using an SPA-2000 to ring the fax machine or modem that's taking fax calls. I was curious if anyone else had tried something similar, and if so, had any luck getting it to work reliably. I've been able to get it to work, but it isn't reliable. (Pages/lines of black dots result more frequently than not.) The incoming lines are FXO and going to something digital isn't an option. My setup looks like this: POTS <---> X100P FXO <--> Asterisk <--> SPA-2000 SIP <--> Fax Would I be better off using spandsp and have * take the fax call? Would a PCI FXS card be the best solution instead of the SPA-2000? I still need to be able to send using a traditional fax machine, which I'm guessing will suffer the same problem with the SPA-2000 that reception has. If someone has been able to use the SPA-2000 to receive faxes reliably, I'd appreciate any tips or configuration settings. Here's my zapata settings: signalling=fxs_ks usecallerid=no echotraining=yes echocancel=yes echocancelwhenbridged=yes faxdetect=none context=inbound-analog1 channel => 1 faxdetect=incoming context=inbound-analog2 channel => 2 SPA-2000 is set to use ulaw only, changed Echo Supp Enable to "No" from default. -- Seth "et lux in tenebris lucet" Mattinen sethm@rollernet.us
We have it working reliably on calls coming in over a T1, I don't remember the exact settings we used, but I will send on Monday when I'm back in the office. Make sure that everything is 711Ulaw only and that your fax or modem operates no faster than 9600, data through Asterisk analog lines won't go any faster than 9600. MATT--- -----Original Message----- From: Seth Mattinen [mailto:sethm@rollernet.us] Sent: Saturday, June 19, 2004 2:16 AM To: asterisk-users@lists.digium.com Subject: [Asterisk-Users] Fax with SPA-2000's? I've been trying to get fax reception to work using an SPA-2000 to ring the fax machine or modem that's taking fax calls. I was curious if anyone else had tried something similar, and if so, had any luck getting it to work reliably. I've been able to get it to work, but it isn't reliable. (Pages/lines of black dots result more frequently than not.) The incoming lines are FXO and going to something digital isn't an option. My setup looks like this: POTS <---> X100P FXO <--> Asterisk <--> SPA-2000 SIP <--> Fax Would I be better off using spandsp and have * take the fax call? Would a PCI FXS card be the best solution instead of the SPA-2000? I still need to be able to send using a traditional fax machine, which I'm guessing will suffer the same problem with the SPA-2000 that reception has. If someone has been able to use the SPA-2000 to receive faxes reliably, I'd appreciate any tips or configuration settings. Here's my zapata settings: signalling=fxs_ks usecallerid=no echotraining=yes echocancel=yes echocancelwhenbridged=yes faxdetect=none context=inbound-analog1 channel => 1 faxdetect=incoming context=inbound-analog2 channel => 2 SPA-2000 is set to use ulaw only, changed Echo Supp Enable to "No" from default. -- Seth "et lux in tenebris lucet" Mattinen sethm@rollernet.us _______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
On 2004.06.18 23:15 Seth Mattinen wrote:> I've been trying to get fax reception to work using an SPA-2000 to > ring the fax machine or modem that's taking fax calls. I was curious > if anyone else had tried something similar, and if so, had any luck > getting it to work reliably. I've been able to get it to work, but it > isn't reliable. (Pages/lines of black dots result more frequently > than not.) The incoming lines are FXO and going to something digital > isn't an option. My setup looks like this: > > POTS <---> X100P FXO <--> Asterisk <--> SPA-2000 SIP <--> FaxI've got the same configuration, and it works fine, but I had to disable V.17 (i.e, 14400 baud). V.27, V.29, and *V.34* all seem work just fine, however. There seems to be some kind of incompatibility between Asterisk and V.17 (this isn't surprising, many PBXs screw up V.17 communications). Lee.