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</o:shapelayout></xml><![endif]--></head><body lang=DE-AT link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Hello,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>we also had this problem with Asterisk and 3CX… the problem was, that asterisk is not setting the right values for the t38 handshake 3CX requires. So it doesn’t work out of the box.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>If you see the debugging log oft he 3cx you shoul see the problem:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> <RCV_ERROR>Call was either not from a fax machine, or else fax handshaking failed</RCV_ERROR></span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> </span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>09:57:22.143|2788|(0):FAXServer,</span></i><span class=apple-converted-space><i><span lang=EN-US style='font-family:"Calibri",sans-serif'> </span></i></span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Error reported thru T38__SET_CONFIG_CO (nai = 1)</span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>09:57:22.143|2788|(0):FAXServer,</span></i><span class=apple-converted-space><i><span lang=EN-US style='font-family:"Calibri",sans-serif'> </span></i></span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> error source = (238) FOIP__START_ERR_SRC__T38_SESSION_CONFIG, Process: Session Configuration of T.38 entity (T38__SET_CONFIG_RQ (T38__SESSION_CNF))</span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>09:57:22.143|2788|(0):FAXServer,</span></i><span class=apple-converted-space><i><span style='font-family:"Calibri",sans-serif'> </span></i></span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> error code = (111) T38__CFG_ERR_T38_CAP__2_FAX_MAX_BUFFER_SIZE, T38__cap__fax_max_buffer_size < T38__cap__max_datagram_size</span></i><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>The problem is, that Asterisk is not sending the MAX BUFFER SIZE so 3cx is setting there default value<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Standardwerte der 3CX:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ushort fax_max_buffer_size; (10500)</span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> </span><span class=apple-converted-space><span lang=EN-US style='font-family:"Calibri",sans-serif'> </span></span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>ushort max_datagram_size; (1500)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ushort fax_max_buffer_size; If missing (1024)</span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> ushort max_datagram_size; If missing (1024)</span><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>But MAX BUFFER SIZE must be bigger as MAX DATAGRAM otherwise faxing to 3CX does not working.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>I hope i could help you a bit with your problem… <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=DE style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Von:</span></b><span lang=DE style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Spce-user [mailto:spce-user-bounces@lists.sipwise.com] <b>Im Auftrag von </b>William Hilsum<br><b>Gesendet:</b> Freitag, 21. Oktober 2016 12:46<br><b>An:</b> spce-user@lists.sipwise.com<br><b>Betreff:</b> [Spce-user] Fax issue<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Hi,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Got a little problem and I'm not too sure where the issue is.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have a tenant on 3CX and I followed their guide for a fax, however when the call gets to 3CX, it instantly hangs up.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I've never used fax before on VOIP, and if it is an issue on 3CX, I apologise and will look there, but, I was wondering if anyone knows if there is anything special I need to do on Sipwise to support fax?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>William<o:p></o:p></p></div></div></div></body></html>