[Freeswitch-users] Spandsp mulated modems inbound/no /dev/FS* device?

[Anita Hall]

Hi Alex

Many thanks for the reply.

Do I need t38modem if I am already receiving the Fax calls over E1 via a
Sangoma Card in my FS machine ? I read on the list that Hylafax takes audio
and the only reason you needed t38modem was because your FS was getting
calls over SIP.

This is my topology
~~~~~~~~~
Hylafax <-------->|______| <-------> FreeSWITCH <---------> E1
~~~~~~~~~

Since Hylafax is already taking audio calls, may be I do not need the
t38modem ? If not, can Hylafax take audio calls directly from FreeSWITCH ?

This is your topology (taken from your mails in the list)
~~~~~~~~~
Hylafax<---Audio---->t38modem<---T38--->Freeswitch/t38gateway<----G.711/SIP--->Mitel
3300(T38 unsupported, grr)<---ISDN30---->PSTN
~~~~~~~~~

Many thanks for the discussion.

regards,
Anita



On Fri, May 18, 2012 at 1:08 AM, Alex Crow <acrow at integrafin.co.uk> wrote:

> On 17/05/12 14:51, Anita Hall wrote:
> > Hi Alex
> >
> > Did you get the answer to your first question ? Did you succeed in
> > using the emulated modem option for taking fax calls to hylafax ?
> >
> > I put the following in spandsp.conf.xml and got /dev/FS[0-4] devices
> > as soft links to /dev/pts/[4-8]. My freeswitch is running as root user
> > so I did not face the issue you did.
> >
> > <modem-settings>
> > <param name="total-modems"    value="5"/>
> > </modem-settings>
> >
> > What next? Could you point me to some doc in hylafax?
> >
> > (And before Steve lashes out at me again, I must clarify, I do not
> > want to just play around, but my boss is clueless and wants me to
> > evaluate hylafax :()
> >
> > regards,
> > Anita
> >
> >
>
> Anita,
>
> The answer I got was that inbound is not yet supported by that
> mechanism, so I'd advise trying the Hylafax/T38Modem option if you need
> to use Hylafax. The T38Modem site provides tarballs of the OPAL and
> required dependencies to build it. The one main advantage we see for it
> is that there are quite a few free and commercial clients for Hylafax
> that can behave as a printer in Windows, so the user selects to print
> say a .doc file, chooses the fax printer, enters a number and off it
> goes. We used WHFC with XP, works great. We even have chaps batch faxing
> 100+ faxes a day using it from Excel with a macro.
>
> The other route for inbound is well documented, it using the inbuilt
> FreeSWITCH faxing and sending to email. Outbound is equally simple but
> not IMHO as easy for our end users as Hylafax (email-to-fax is simple
> but printing to fax from Windows not so simple). But with some work on
> your side, the spandsp stuff could probably do anything HF can do.
>
> As I said, Hylafax is excellent software and has been deployed on major
> production sites for probably 15 years+ with billions of total faxes
> delivered. We've used it for more than ten years with about 400 faxes
> in/out per day (which is piddling compared with some other sites, 10,000
> per day is not difficult). If you want to avoid using t38modem you'd
> probably have to set up a dedicated HF box with an ISDN/POTS
> multichannel card (and if you want to fax from/to FS use a BRI or T1/E1
> card to send audio to and from it). There are other ways of integrating
> it with backoffice systems including FTP, email, etc.
>
> To try to deploy a business fax system without first evaluating HylaFAX
> is in my opinion insane, so maybe your boss has a point. If, however,
> your boss is the one driving you to ask all these very diverse questions
> on this list (and they are indeed frequent and often completely
> unrelated to each other), perhaps you should ask him/her to focus on
> those that are his top priorities, and pick the first 3 to 5 and focus
> on those first, or in fact just compose a list of required features,
> post them up in a single email rather than 50, and ask "is this possible?".
>
> Just being a bit more targeted with your questions and how they link
> together might elicit more responses. Try to pick one solution at a
> time, test it, ask questions on that and stick with it for a bit and I
> think you'll get more help.
>
> Cheers
>
> Alex
>
>
> --
> This message is intended only for the addressee and may contain
> confidential information.  Unless you are that person, you may not
> disclose its contents or use it in any way and are requested to delete
> the message along with any attachments and notify us immediately.
>
> "Transact" is operated by Integrated Financial Arrangements plc
> Domain House, 5-7 Singer Street, London  EC2A 4BQ
> Tel: (020) 7608 4900 Fax: (020) 7608 5300
> (Registered office: as above; Registered in England and Wales under
> number: 3727592)
> Authorised and regulated by the Financial Services Authority (entered on
> the FSA Register; number: 190856)
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> Join Us At ClueCon - Aug 7-9, 2012
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20120518/7ed0de34/attachment-0001.html