One of the reasons that has kept any work ever happening on this is we can't seem to find a single device that actually claims to support v.150. Spandsp already has quite a bit of the modem code for 9600 and 14400 but its not exposed to a data modem interface.
On Feb 20, 2015, at 11:08 AM, Brian West <brian@freeswitch.org> wrote:
You want v.150.1, GOOD LUCK!
On Fri, Feb 20, 2015 at 9:13 AM, François <fdelawarde@wirelessmundi.com <mailto:fdelawarde@wirelessmundi.com>> wrote: Interesting.. Looks like some type of T38 for data-modem over VoIP. Unfortunately FS/SpanDSP don't support this AFAIK.
Also I was thinking of using a PRI line (freetdm) to avoid VoIP issues.
Thanks, François.
On 02/20/2015 03:53 PM, Sergey Safarov wrote:
I not know FS support this scenario but this may be help you
http://www.voip-info.org/wiki/view/Modem+over+VOIP <http://www.voip-info.org/wiki/view/Modem+over+VOIP> http://www.cisco.com/c/en/us/td/docs/ios/12_4t/12_4t4/mer_cg_15_1_4M.html <http://www.cisco.com/c/en/us/td/docs/ios/12_4t/12_4t4/mer_cg_15_1_4M.html> https://support.sonus.net/display/VXDOC/V.150.1+Device+Support <https://support.sonus.net/display/VXDOC/V.150.1+Device+Support>
On Fri, Feb 20, 2015 at 5:36 PM, François <fdelawarde@wirelessmundi.com <mailto:fdelawarde@wirelessmundi.com>> wrote: Self answer: Apparently SpanDSP does not support V32 nor V90/V92.
Also I can't seem to find any other solution. The objective was to fetch data from remote GSM sensors using simple protocols over V32 and similar...
François.
On 02/20/2015 11:07 AM, François wrote:
Hi all,
As seen in the HylaFax wiki entry, mod_spandsp can be used as a soft-modem. https://wiki.freeswitch.org/wiki/HylaFax <https://wiki.freeswitch.org/wiki/HylaFax>
Can it also be used as a data modem (not just fax modem) with V32, V92 or similar protocols?
If not, does anyone know of any data-modem software that could work along with FreeSWITCH?
Thanks, François.
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