FreeSwitch modems flow control?
Hi, I asked this question a *long* time ago as I was having major problems receiving faxes using HylaFAX and the builtin FS Modems, in that the FS Modems did not have any kind of flow control, which resulted in a repeated backing off of baud rate until the incoming faxes failed with a rate of over 50%. Has there been any change in the softmodem code to add flow control so that this does not happen any more? Best regards Alex
Hello, actually in my case we switched from hylafax and emulation of modems (t38modem or built in Freeswitch spandsp modem) to RxFax/TxFax apps combination. Because you need less of layers of software and solution becomes more simpler and stable. Did you look on: https://github.com/gonicus/gofaxip project they try to remove layer of modem protocol for Hylafax. On Sat, Aug 29, 2015 at 8:07 PM, Alex Crow <acrow@integrafin.co.uk> wrote:
Hi,
I asked this question a *long* time ago as I was having major problems receiving faxes using HylaFAX and the builtin FS Modems, in that the FS Modems did not have any kind of flow control, which resulted in a repeated backing off of baud rate until the incoming faxes failed with a rate of over 50%.
Has there been any change in the softmodem code to add flow control so that this does not happen any more?
Best regards
Alex
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-- Best regards, Volodymyr
Hi Volodymyr, The gofaxip stuff does look interesting - did you try it out? We use Hylafax because a) it's about the best open-source fax server with a long history and b) It has Windows clients that provide a virtual printer, which is essential for our business (faxes sent via Excel macros) I've not found any solution that works with FS native spandsp based faxing that can also provide a Windows virtual printer for outbound faxing from the desktop. Faxing via email is not an option, I'm afraid. Alex On 29/08/15 18:28, Volodymyr Fedorov wrote:
Hello, actually in my case we switched from hylafax and emulation of modems (t38modem or built in Freeswitch spandsp modem) to RxFax/TxFax apps combination. Because you need less of layers of software and solution becomes more simpler and stable. Did you look on: https://github.com/gonicus/gofaxip project they try to remove layer of modem protocol for Hylafax.
On Sat, Aug 29, 2015 at 8:07 PM, Alex Crow <acrow@integrafin.co.uk <mailto:acrow@integrafin.co.uk>> wrote:
Hi,
I asked this question a *long* time ago as I was having major problems receiving faxes using HylaFAX and the builtin FS Modems, in that the FS Modems did not have any kind of flow control, which resulted in a repeated backing off of baud rate until the incoming faxes failed with a rate of over 50%.
Has there been any change in the softmodem code to add flow control so that this does not happen any more?
Best regards
Alex
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org <mailto:consulting@freeswitch.org> http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Best regards, Volodymyr
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
Hi. Actually no, maybe I discovered it`s too late. Yes, we had Hylafax with Avantfax and bunch of t38modems and have tonns of problems in interoperability. So what we choose after looking https://freeswitch.org/confluence/display/FREESWITCH/mod_spandsp especially email2fax chapter: I wrote small pipe transport script for EXIM which converts PDF,TIFF,DOCX,DOC to tiff suitable for TxFax. On Sat, Aug 29, 2015 at 9:55 PM, Alex Crow <acrow@integrafin.co.uk> wrote:
Hi Volodymyr,
The gofaxip stuff does look interesting - did you try it out?
We use Hylafax because a) it's about the best open-source fax server with a long history and b) It has Windows clients that provide a virtual printer, which is essential for our business (faxes sent via Excel macros)
I've not found any solution that works with FS native spandsp based faxing that can also provide a Windows virtual printer for outbound faxing from the desktop. Faxing via email is not an option, I'm afraid.
Alex
On 29/08/15 18:28, Volodymyr Fedorov wrote:
Hello, actually in my case we switched from hylafax and emulation of modems (t38modem or built in Freeswitch spandsp modem) to RxFax/TxFax apps combination. Because you need less of layers of software and solution becomes more simpler and stable. Did you look on: https://github.com/gonicus/gofaxip project they try to remove layer of modem protocol for Hylafax.
On Sat, Aug 29, 2015 at 8:07 PM, Alex Crow <acrow@integrafin.co.uk> wrote:
Hi,
I asked this question a *long* time ago as I was having major problems receiving faxes using HylaFAX and the builtin FS Modems, in that the FS Modems did not have any kind of flow control, which resulted in a repeated backing off of baud rate until the incoming faxes failed with a rate of over 50%.
Has there been any change in the softmodem code to add flow control so that this does not happen any more?
Best regards
Alex
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Best regards, Volodymyr
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.orghttp://www.freeswitchsolutions.com
Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://confluence.freeswitch.orghttp://www.cluecon....
FreeSWITCH-users mailing listFreeSWITCH-users@lists.freeswitch.orghttp://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-usershttp://www.frees...
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Best regards, Volodymyr
Ever file a bug report about it? On Saturday, August 29, 2015, Alex Crow <acrow@integrafin.co.uk> wrote:
Hi,
I asked this question a *long* time ago as I was having major problems receiving faxes using HylaFAX and the builtin FS Modems, in that the FS Modems did not have any kind of flow control, which resulted in a repeated backing off of baud rate until the incoming faxes failed with a rate of over 50%.
Has there been any change in the softmodem code to add flow control so that this does not happen any more?
Best regards
Alex
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org <javascript:;> http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org <javascript:;> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
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participants (3)
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Alex Crow
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Brian West
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Volodymyr Fedorov