Re: [asterisk-users] Asterisk T.38 Pass-Through doesn't work
On 4/06/2013 4:53 AM, Andrey Polovov wrote: On 06/03/2013 05:03 PM, Larry Moore wrote: Have you checked the installed version of firmware against the latest available from Cisco? Oh! I didn't guess to check. The firmware was not fresh, but upgrading doesn't help. Looking at your SIP information when your ITSP initiated a T.38 session it did not indicate a maxmimum bitrate, it would appear your spa112 attempted to negotiate a connection at 2400bps. Whether there is a way to force my provider to indicate maximum bitrate? Do you have a sip debug session when you sent a fax from your Asterisk box to the PSTN, it would be interesting to see if it sends it as a t.38 or reverts to G711 audio. I have collect a set of debugs (with fresh SPA112 firmware) and actual config files: I would suggest you test the SPA112 directly against your SIP provider however ensure you have the latest firmware, there appear to have been some FAX related fixes in recent versions. To do this change the following (based upon the screen shot you made available); Nat Mapping Enable: yes Call Waiting Serv: no MWI Serv: no Proxy: 80.75.130.136 Register: no Make Call Without Reg: yes Ans Call Without Reg: yes User ID: 7495777 Password: remotesecret FAX T38 Redundancy: 3 FAX Tone Detect Mode: callee FAX T38 Return to Voice: no When you get this working you can then look at making it work through Asterisk - this is how I got my SPA8800 working. I am assuming your network configuration is set up correctly on the spa112. You may want to look at enabling the following options, on my SPA8800 they are located under the SIP tab in the section headed NAT Parameters: Handle via rport: yes Insert via rport: yes Send Resp to Src Port: yes In addition, once it is working and providing your SIP provider permits ECM through a T.38 service I would encourage one to enable options such as FAX T38 ECM Enable. If you are still experiencing problems you may want to perform a packet capture (set the snap size to 1500) of the communications between the spa112 and the other end point and run it through Wireshark and examine the VoIP calls in the captured packets. Good luck. Larry. -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Asterisk T.38 Pass-Through doesn't work
Thank you for reply, Larry! On 06/03/2013 05:14 AM, Larry Moore wrote: 1) On SPA112 set FAX T38 Redundancy = 3 I have tried to change this value with no effect. 2) Add t38pt_usertpsource=yes in [mtt] section This option take no positive effect for me, asterisk continues to use ports from udptl.conf range. But in the oser side, I think, that there are no problems with network, because: * on router, that provide internet for asterisk configured full DNAT from white IP to asterisk server, * fax between asterisk cmd SendFax and PSTN fax works great. 3) Change maxdatagram=200 to maxdatagram=1400 4) In udptl.conf change T38FaxMaxDatagram to a value of 1400 5) In udptl.conf change use_even_ports to yes This settings doesnt help me. You don't appear to list the sip.conf entry for the SPA112. I`m sorry, spa112 peer settings are in mysql extconfig, config file analogue: [297] context=office secret=xxx host-dynamic nat=yes type=friend callerid=297 disallow=all allow=alaw Where did t38pt_rtp t38_tcp come from? This settings I have googled on some forum and then add to my config with despair. You may also want to experiment with the SPA112 setting FAX T38 ECM Enable This option doesnt help me too :(. Additional info: fax between two SPA112 works perfect! Now I returned settings to original state as described in first letter. -- Андрей Половов, ведущий инженер ЗАО «Флант». http://www.flant.ru/ +7 (495) 721-10-27, доб. 412 +7 (925) 816-66-83 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Asterisk T.38 Pass-Through doesn't work
On 3/06/2013 8:04 PM, Andrey Polovov wrote: Thank you for reply, Larry! On 06/03/2013 05:14 AM, Larry Moore wrote: 1) On SPA112 set FAX T38 Redundancy = 3 I have tried to change this value with no effect. 2) Add t38pt_usertpsource=yes in [mtt] section This option take no positive effect for me, asterisk continues to use ports from udptl.conf range. But in the oser side, I think, that there are no problems with network, because: * on router, that provide internet for asterisk configured full DNAT from white IP to asterisk server, * fax between asterisk cmd SendFax and PSTN fax works great. 3) Change maxdatagram=200 to maxdatagram=1400 4) In udptl.conf change T38FaxMaxDatagram to a value of 1400 5) In udptl.conf change use_even_ports to yes This settings doesnt help me. You don't appear to list the sip.conf entry for the SPA112. I`m sorry, spa112 peer settings are in mysql extconfig, config file analogue: [297] context=office secret=xxx host-dynamic nat=yes type=friend callerid=297 disallow=all allow=alaw Where did t38pt_rtp t38_tcp come from? This settings I have googled on some forum and then add to my config with despair. You may also want to experiment with the SPA112 setting FAX T38 ECM Enable This option doesnt help me too :(. Additional info: fax between two SPA112 works perfect! Now I returned settings to original state as described in first letter. Have you checked the installed version of firmware against the latest available from Cisco? Looking at your SIP information when your ITSP initiated a T.38 session it did not indicate a maxmimum bitrate, it would appear your spa112 attempted to negotiate a connection at 2400bps. Do you have a sip debug session when you sent a fax from your Asterisk box to the PSTN, it would be interesting to see if it sends it as a t.38 or reverts to G711 audio. You will only want to experiment with the ECM option once you have t.38 working. Larry. -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Asterisk T.38 Pass-Through doesn't work
On 06/03/2013 05:03 PM, Larry Moore wrote: Have you checked the installed version of firmware against the latest available from Cisco? Oh! I didn't guess to check. The firmware was not fresh, but upgrading doesn't help. Looking at your SIP information when your ITSP initiated a T.38 session it did not indicate a maxmimum bitrate, it would appear your spa112 attempted to negotiate a connection at 2400bps. Whether there is a way to force my provider to indicate maximum bitrate? Do you have a sip debug session when you sent a fax from your Asterisk box to the PSTN, it would be interesting to see if it sends it as a t.38 or reverts to G711 audio. I have collect a set of debugs (with fresh SPA112 firmware) and actual config files: == spa112 — cmd ReceiveFax https://gist.github.com/anonymous/5701032 == cmd SendFax — PSTN https://gist.github.com/anonymous/5701150 == spa112 — PSTN https://gist.github.com/anonymous/5701207 == sip.conf https://gist.github.com/anonymous/5701231 == udptl.conf https://gist.github.com/anonymous/5701247 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] Asterisk T.38 Pass-Through doesn't work
What I have is: * Asterisk 1.8.10.1~dfsg-1ubuntu1, * SPA112 ATA with analog fax in 1-st FXS port connected, * SIP trunk with provider supporting T.38. My network looks like this: * spa112 (192.168.33.200/24) and Asterisk (192.168.5.253/24) in neighbouring LANs, * Asterisk connects to the provider (80.75.130.136) via router (82.200.7.184). Router has full DNAT to Asterisk server. What happens? * The fax from SPA112 to Asterisk cmd ReceiveFax works well, * The fax from Asterisk cmd SendFax to PSTN fax works well, * However, the fax from SPA112 to PSTN fax doesn't work. Using udptl debug, I can see packets between Asterisk and both sides (SPA112 and PSTN fax) but it seems that faxes can't agree how to send image. == sip.conf: [general] tcpenable=yes videosupport=yes transport=udp,tcp dtmfmode=rfc2833 qualify=yes directmedia=no allowguest=no alwaysauthreject=yes rtcachefriends=yes rtupdate=no callcounter=yes t38pt_udptl=yes,redundancy,maxdatagram=200 t38pt_rtp=no t38pt_tcp=no ignoresdpversion=yes disallow=all allow=alaw allow=ulaw externip=82.200.7.184 localnet=192.168.0.0/255.255.0.0 [mtt] type=peer host=80.75.130.136 fromuser=7495777 disallow=all allow=alaw,ulaw directmedia=no canreinvite=no nat=yes == udptl.conf: [general] udptlstart=4000 udptlend=4999 T38FaxUdpEC=t38UDPRedundancy T38FaxMaxDatagram=200 udptlfecentries = 3 udptlfecspan = 3 use_even_ports = no == spa112 SIP settings screenshot: http://tinypic.com/view.php?pic=2z8dic6s=5 == debug log: https://gist.github.com/anonymous/5685307 Please, help me! -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Asterisk T.38 Pass-Through doesn't work
On 2/06/2013 9:34 PM, Андрей Половов wrote: What I have is: * Asterisk 1.8.10.1~dfsg-1ubuntu1, * SPA112 ATA with analog fax in 1-st FXS port connected, * SIP trunk with provider supporting T.38. My network looks like this: * spa112 (192.168.33.200/24) and Asterisk (192.168.5.253/24) in neighbouring LANs, * Asterisk connects to the provider (80.75.130.136) via router (82.200.7.184). Router has full DNAT to Asterisk server. What happens? * The fax from SPA112 to Asterisk cmd ReceiveFax works well, * The fax from Asterisk cmd SendFax to PSTN fax works well, * However, the fax from SPA112 to PSTN fax doesn't work. Using udptl debug, I can see packets between Asterisk and both sides (SPA112 and PSTN fax) but it seems that faxes can't agree how to send image. == sip.conf: [general] tcpenable=yes videosupport=yes transport=udp,tcp dtmfmode=rfc2833 qualify=yes directmedia=no allowguest=no alwaysauthreject=yes rtcachefriends=yes rtupdate=no callcounter=yes t38pt_udptl=yes,redundancy,maxdatagram=200 t38pt_rtp=no t38pt_tcp=no ignoresdpversion=yes disallow=all allow=alaw allow=ulaw externip=82.200.7.184 localnet=192.168.0.0/255.255.0.0 [mtt] type=peer host=80.75.130.136 fromuser=7495777 disallow=all allow=alaw,ulaw directmedia=no canreinvite=no nat=yes == udptl.conf: [general] udptlstart=4000 udptlend=4999 T38FaxUdpEC=t38UDPRedundancy T38FaxMaxDatagram=200 udptlfecentries = 3 udptlfecspan = 3 use_even_ports = no I don't have access to one of these devices though some suggestions you could try; 1) On SPA112 set FAX T38 Redundancy = 3 2) Add t38pt_usertpsource=yes in [mtt] section 3) Change maxdatagram=200 to maxdatagram=1400 4) In udptl.conf change T38FaxMaxDatagram to a value of 1400 5) In udptl.conf change use_even_ports to yes You don't appear to list the sip.conf entry for the SPA112. Where did t38pt_rtp t38_tcp come from? You may also want to experiment with the SPA112 setting FAX T38 ECM Enable Cheers, Larry. -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
