eliminating fax header line
I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2. What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source? Thanks!
Bruce, I don’t even know if you are in the US, but in the US that top line (and what is in it) is required by law. That may have changed in the last few years, but I know that was true a few years ago. It became a “hot item” when fax blasting SPAM was bigger than Email SPAM. As to your actual FS question, sorry I can’t help. Sean From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Bruce Lefko Sent: Thursday, May 08, 2014 4:17 PM To: freeswitch-users@lists.freeswitch.org Subject: [Freeswitch-users] eliminating fax header line I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2. What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source? Thanks!
Hi Sean, What you said is not entirely true. A freshly generated FAX page should have a header inserted in the US. If the system is forwarding a FAX its page should already have a header, and the forwarding system should not be adding an additional one. Rules on FAX headers vary a lot between countries, and you really need to check local regulations. Some specify very specific wording that needs to be in the header. Hi Bruce, If the header info string is of zero length the header should not be inserted. Regards, Steve On 05/09/2014 04:49 AM, Sean Devoy wrote:
Bruce,
I don’t even know if you are in the US, but in the US that top line (and what is in it) is required by law. That may have changed in the last few years, but I know that was true a few years ago. It became a “hot item” when fax blasting SPAM was bigger than Email SPAM.
As to your actual FS question, sorry I can’t help.
Sean
*From:*freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] *On Behalf Of *Bruce Lefko *Sent:* Thursday, May 08, 2014 4:17 PM *To:* freeswitch-users@lists.freeswitch.org *Subject:* [Freeswitch-users] eliminating fax header line
I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2.
What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source?
Thanks!
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Hi Steve. I checked into the legality of removing the header line, and it turns out this is only a problem for advertisements, which we are not doing. As far as getting the header removed, I tried doing the following: originate {ignore_early_media=true,absolute_codec_string='PCMU,PCMA',fax_enable_t38=true,fax_verbose=true,fax_use_ecm=true,fax_enable_t38_request=true,origination_caller_id_number='A CALLER ID',origination_caller_id_name='A CALLER ID NAME',call_timeout=120,fax_ident='a fax ident',fax_header=}sofia/gateway/outbound/+15555555555 &txFax('/tmp/sample.tiff') Even if I remove the default headers in spandsp.conf.xml and fax.conf.xml I still get "SpanDSP Fax Header". I noticed that this is hardcoded in "src/mod/applications/mod_spandsp/mod_spandsp.c" line 527. Am I not passing the null string properly somehow via originate? I noticed in my logs that there are many lines for "switch_event.c:1661 Parsing variable" for my other parameters, but not for my fax_header parameter. Thanks! On Thu, May 8, 2014 at 3:16 PM, Bruce Lefko <blefko5361@gmail.com> wrote:
I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2.
What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source?
Thanks!
try setting fax_header=' ' (two spaces) On May 28, 2014, at 7:58 PM, Bruce Lefko <blefko5361@gmail.com> wrote:
Hi Steve.
I checked into the legality of removing the header line, and it turns out this is only a problem for advertisements, which we are not doing.
As far as getting the header removed, I tried doing the following:
originate {ignore_early_media=true,absolute_codec_string='PCMU,PCMA',fax_enable_t38=true,fax_verbose=true,fax_use_ecm=true,fax_enable_t38_request=true,origination_caller_id_number='A CALLER ID',origination_caller_id_name='A CALLER ID NAME',call_timeout=120,fax_ident='a fax ident',fax_header=}sofia/gateway/outbound/+15555555555 &txFax('/tmp/sample.tiff')
Even if I remove the default headers in spandsp.conf.xml and fax.conf.xml I still get "SpanDSP Fax Header". I noticed that this is hardcoded in "src/mod/applications/mod_spandsp/mod_spandsp.c" line 527.
Am I not passing the null string properly somehow via originate? I noticed in my logs that there are many lines for "switch_event.c:1661 Parsing variable" for my other parameters, but not for my fax_header parameter.
Thanks!
On Thu, May 8, 2014 at 3:16 PM, Bruce Lefko <blefko5361@gmail.com> wrote: I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2.
What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source?
Thanks!
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
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Hi Michael. I tried the ' ', but same thing: the parameter does not show up as parsed and the harcoded default is what is used. On Wed, May 28, 2014 at 2:58 PM, Bruce Lefko <blefko5361@gmail.com> wrote:
Hi Steve.
I checked into the legality of removing the header line, and it turns out this is only a problem for advertisements, which we are not doing.
As far as getting the header removed, I tried doing the following:
originate {ignore_early_media=true,absolute_codec_string='PCMU,PCMA',fax_enable_t38=true,fax_verbose=true,fax_use_ecm=true,fax_enable_t38_request=true,origination_caller_id_number='A CALLER ID',origination_caller_id_name='A CALLER ID NAME',call_timeout=120,fax_ident='a fax ident',fax_header=}sofia/gateway/outbound/+15555555555 &txFax('/tmp/sample.tiff')
Even if I remove the default headers in spandsp.conf.xml and fax.conf.xml I still get "SpanDSP Fax Header". I noticed that this is hardcoded in "src/mod/applications/mod_spandsp/mod_spandsp.c" line 527.
Am I not passing the null string properly somehow via originate? I noticed in my logs that there are many lines for "switch_event.c:1661 Parsing variable" for my other parameters, but not for my fax_header parameter.
Thanks!
On Thu, May 8, 2014 at 3:16 PM, Bruce Lefko <blefko5361@gmail.com> wrote:
I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2.
What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source?
Thanks!
Just for the records: With current Freeswitch I could eleminate the Fax header line completely by patching /usr/src/freeswitch/src/mod/applications/mod_spandsp/mod_spandsp.c spandsp_globals.ident = "SpanDSP Fax Ident"; spandsp_globals.header = "SpanDSP Fax Header"; to spandsp_globals.ident = ""; spandsp_globals.header = ""; Then you can set fax_ident='', fax_header='' in your dialstring and get an empty header Diff for this: diff mod_spandsp.c mod_spandsp.c.org 518,519c518,519 < spandsp_globals.ident = ""; < spandsp_globals.header = ""; ---
spandsp_globals.ident = "SpanDSP Fax Ident"; spandsp_globals.header = "SpanDSP Fax Header";
Best regards Peter On 05/28/14 22:29, Bruce Lefko wrote:
Hi Michael.
I tried the ' ', but same thing: the parameter does not show up as parsed and the harcoded default is what is used.
On Wed, May 28, 2014 at 2:58 PM, Bruce Lefko <blefko5361@gmail.com <mailto:blefko5361@gmail.com>> wrote:
Hi Steve.
I checked into the legality of removing the header line, and it turns out this is only a problem for advertisements, which we are not doing.
As far as getting the header removed, I tried doing the following:
originate {ignore_early_media=true,absolute_codec_string='PCMU,PCMA',fax_enable_t38=true,fax_verbose=true,fax_use_ecm=true,fax_enable_t38_request=true,origination_caller_id_number='A CALLER ID',origination_caller_id_name='A CALLER ID NAME',call_timeout=120,fax_ident='a fax ident',fax_header=}sofia/gateway/outbound/+15555555555 &txFax('/tmp/sample.tiff')
Even if I remove the default headers in spandsp.conf.xml and fax.conf.xml I still get "SpanDSP Fax Header". I noticed that this is hardcoded in "src/mod/applications/mod_spandsp/mod_spandsp.c" line 527.
Am I not passing the null string properly somehow via originate? I noticed in my logs that there are many lines for "switch_event.c:1661 Parsing variable" for my other parameters, but not for my fax_header parameter.
Thanks!
On Thu, May 8, 2014 at 3:16 PM, Bruce Lefko <blefko5361@gmail.com <mailto:blefko5361@gmail.com>> wrote:
I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2.
What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source?
Thanks!
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.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
-- With kind regards Peter Steinbach Telefaks Services GmbH mailto:lists (att) telefaks.de Internet: www.telefaks.de
Current code allows you to set _undef_ in config file: } else if (!strcmp(name, "ident")) { if (!strcmp(value, "_undef_")) { spandsp_globals.ident = ""; } else { spandsp_globals.ident = switch_core_strdup(spandsp_globals.config_pool, value); } On Thu, Mar 26, 2015 at 9:11 AM, Peter Steinbach <lists@telefaks.de> wrote:
Just for the records:
With current Freeswitch I could eleminate the Fax header line completely by patching
/usr/src/freeswitch/src/mod/applications/mod_spandsp/mod_spandsp.c spandsp_globals.ident = "SpanDSP Fax Ident"; spandsp_globals.header = "SpanDSP Fax Header";
to spandsp_globals.ident = ""; spandsp_globals.header = "";
Then you can set fax_ident='', fax_header='' in your dialstring and get an empty header
Diff for this:
diff mod_spandsp.c mod_spandsp.c.org 518,519c518,519 < spandsp_globals.ident = ""; < spandsp_globals.header = ""; ---
spandsp_globals.ident = "SpanDSP Fax Ident"; spandsp_globals.header = "SpanDSP Fax Header";
Best regards Peter
On 05/28/14 22:29, Bruce Lefko wrote:
Hi Michael.
I tried the ' ', but same thing: the parameter does not show up as parsed and the harcoded default is what is used.
On Wed, May 28, 2014 at 2:58 PM, Bruce Lefko <blefko5361@gmail.com> wrote:
Hi Steve.
I checked into the legality of removing the header line, and it turns out this is only a problem for advertisements, which we are not doing.
As far as getting the header removed, I tried doing the following:
originate {ignore_early_media=true,absolute_codec_string='PCMU,PCMA',fax_enable_t38=true,fax_verbose=true,fax_use_ecm=true,fax_enable_t38_request=true,origination_caller_id_number='A CALLER ID',origination_caller_id_name='A CALLER ID NAME',call_timeout=120,fax_ident='a fax ident',fax_header=}sofia/gateway/outbound/+15555555555 &txFax('/tmp/sample.tiff')
Even if I remove the default headers in spandsp.conf.xml and fax.conf.xml I still get "SpanDSP Fax Header". I noticed that this is hardcoded in "src/mod/applications/mod_spandsp/mod_spandsp.c" line 527.
Am I not passing the null string properly somehow via originate? I noticed in my logs that there are many lines for "switch_event.c:1661 Parsing variable" for my other parameters, but not for my fax_header parameter.
Thanks!
On Thu, May 8, 2014 at 3:16 PM, Bruce Lefko <blefko5361@gmail.com> wrote:
I'd like to completely eliminate the header line sent at the top of each fax page using spandsp. i've set fax-header to a null string, but that doesn't seem to be removing it, and it defaults back to 'Spandsp fax header'. This seems to be the default in the source code in 1.2.
What do I have to do to eliminate the header line? Do I have to make changes to freeswitch source?
Thanks!
_________________________________________________________________________ Professional FreeSWITCH Consulting Services:consulting@freeswitch.orghttp://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Serverhttp://www.cudatel.com
Official FreeSWITCH Siteshttp://www.freeswitch.orghttp://wiki.freeswitch.orghttp://www.cluecon.com
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...
-- With kind regards Peter Steinbach
Telefaks Services GmbHmailto:lists <lists> (att) telefaks.de Internet: www.telefaks.de
_________________________________________________________________________ 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
-- Ítalo Rossi
participants (6)
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Bruce Lefko
-
Michael Jerris
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Peter Steinbach
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Sean Devoy
-
Steve Underwood
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Ítalo Rossi