Nick Glencross
2006-Oct-18 02:34 UTC
[asterisk-users] Blank page when sending faxes (repost)
Guys, [Forgive this repost -- my original posting doesn't seem to have shown up in the list (yet)] I have been trying to send a fax using spandsp/app_rtxfax/asterisk. I'm trying to send a (3 page) fax, and all I'm receiving is a single blank page (and I've tried it with 2 fax machines). As some background, I'm using asterisk with an E1 connection through a Sangoma WAN card -- all of this has been working with voice for over 6 months. The software is all working too from what I can see, I've got tiff 3.8.2, app_rtxfax 0.0.2_pre25 and spandsp-0.0.2_pre26 with asterisk-1.2.9_p1 on Gentoo Linux. I have created a simple test using ghostscript to create a TIFF image in the correct format. I've enabled debugging in spandsp (and have the caller argument, which seems to be a common pitfall), and this is what I'm seeing: Restarting V.29 Restarting V.27ter Changed from phase 0 to 2 HDLC carrier up HDLC carrier down HDLC carrier up HDLC carrier down HDLC carrier up HDLC carrier down HDLC carrier up HDLC framing OK Changed from phase 2 to 3 HDLC carrier up HDLC framing OK HDLC carrier down HDLC carrier up HDLC framing OK NSF without final frame tag The remote was made by 'HP' CSI without final frame tag Remote fax gave CSI as: "00000000" DIS with final frame tag In state 10 ???: 3rd generation mobile network V.8 capable Prefer 64 octet blocks Reserved: 0x98 Supported data signalling rates: V.29 R8x7.7lines/mm and/or 200x200pels/25.4mm 2D coding Scan line length: 215mm Recording length: A4 (297mm) Receiver's minimum scan line time: 20ms at 3.85 l/mm: T7.7 = T3.85 Uncompressed mode Reserved: 0x10 Minimum scan line time for higher resolutions: T15.4 = T7.7 ???: Prefer 256 octet blocks Reserved: 0x80 Supported data signalling rates: V.27ter fallback mode 2D coding Scan line length: 215mm Recording length: A4 (297mm) Receiver's minimum scan line time: 20ms at 3.85 l/mm: T7.7 = T3.85 Start sending document Start tx document Changed from phase 3 to 4 HDLC underflow in state 3 Restarting V.29 Changed from phase 4 to 6 Changed from phase 6 to 3 HDLC carrier up HDLC framing OK CFR with final frame tag In state 4 Trainability test succeeded Start tx page 0 HDLC carrier down Restarting V.29 Changed from phase 3 to 6 Changed from phase 6 to 4 Start tx page 1 HDLC underflow in state 13 Changed from phase 4 to 3 HDLC carrier up HDLC framing OK RTN with final frame tag In state 13 Changed from phase 3 to 4 HDLC underflow in state 2 Disconnecting Changed from phase 4 to 7 Changed from phase 7 to 8>From what I can see, this looks plausible, and certainly shows thatthere is a significant conversation going on. The Fax Activity Log shows the comany name that I have set in the software, and 'OK' as the result, and yet only a blank page was produced! I've also created another TIFF image using 'pnmtotiff -g3' and this has behaved in the same way. Any insight will be gratefully accepted, Regards, Nick Glencross
Nick Glencross
2006-Oct-18 02:37 UTC
[asterisk-users] Re: Blank page when sending faxes (repost)
On 18/10/06, Nick Glencross <nick.glencross@gmail.com> wrote:> Guys, > > [Forgive this repost -- my original posting doesn't seem to have shown > up in the list (yet)]Just my luck, my original posting has just appeared. Sorry for the noise! Nick