VoIP Mailing List Archives
Mailing list archives for the VoIP community |
|
| View previous topic :: View next topic |
| Author |
Message |
sanjay.rajdev at feath...
Guest
|
 Posted: Wed May 21, 2008 8:55 am Post subject: [asterisk-users] Fax solution for Asterisk |
 |
|
We are using Asterisk 1.4.13 on FC6 and have a T1 card with 20 DID's.
We are wanting to use one of the DID's for Fax, is this possible or do we have to add some addition Hardware and what is the best way to do this.
I know that similar thing would have been asked multiple time already, but I was not able to find anything that could answer my questions.
Regards,
Sanjay Rajdev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20080521/bf3963dc/attachment.htm |
|
| Back to top |
|
 |
faxguy at howardsilvan...
Guest
|
| Posted: Wed May 21, 2008 9:26 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
Sanjay Rajdev wrote:
| Quote: | We are using Asterisk 1.4.13 on FC6 and have a T1 card with 20 DID's.
We are wanting to use one of the DID's for Fax, is this possible or do
we have to add some addition Hardware and what is the best way to do this.
|
http://iaxmodem.sourceforge.net
Thanks,
Lee. |
|
| Back to top |
|
|
stotaro at totarotechn...
Guest
|
| Posted: Wed May 21, 2008 9:34 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Wed, May 21, 2008 at 10:26 AM, Lee Howard <faxguy at howardsilvan.com> wrote:
| Quote: | Sanjay Rajdev wrote:
| Quote: | We are using Asterisk 1.4.13 on FC6 and have a T1 card with 20 DID's.
We are wanting to use one of the DID's for Fax, is this possible or do
we have to add some addition Hardware and what is the best way to do this.
|
http://iaxmodem.sourceforge.net
Thanks,
Lee.
|
It depends on the amount of faxes and desired capabilities. If you
just want a standalone fax, you could get an FXS card (in the same
box) and bridge the faxes to that. It has worked quite well for me
with a bit of tweaking, echocancelwhenbridged=no helps.
Another option that works very well for high density, real fax
machines is taking another T1 port and attaching it to a channel bank.
Third option, hylafax and iaxmodem. This works pretty well since you
are using a T for your inbound fax.
Thanks,
Steve Totaro |
|
| Back to top |
|
|
stotaro at totarotechn...
Guest
|
| Posted: Wed May 21, 2008 9:42 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Wed, May 21, 2008 at 10:40 AM, Sanjay Rajdev
<sanjay.rajdev at featherstoneinformatics.com> wrote:
| Quote: | How about outbound faxing.
Regards,
Sanjay Rajdev
|
How about it? Describe your needs. There are different ways of doing
the same thing, it all depends on needs.
Thanks,
Steve Totaro |
|
| Back to top |
|
|
niles at atheos.net
Guest
|
|
| Back to top |
|
|
stotaro at totarotechn...
Guest
|
| Posted: Wed May 21, 2008 9:52 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Wed, May 21, 2008 at 10:48 AM, Niles Ingalls <niles at atheos.net> wrote:
| Quote: |
On May 21, 2008, at 9:55 AM, Sanjay Rajdev wrote:
We are using Asterisk 1.4.13 on FC6 and have a T1 card with 20 DID's.
We are wanting to use one of the DID's for Fax, is this possible or do we
have to add some addition Hardware and what is the best way to do this.
I know that similar thing would have been asked multiple time already, but I
was not able to find anything that could answer my questions.
Regards,
Sanjay Rajdev
I have 3 running installations of Asterisk using IAXmodem and Hylafax. Very
very reliable, no additional hardware required.
http://www.voip-info.org/wiki/index.php?page=Asterisk+IAXmodem
http://www.voip-info.org/wiki/view/Hylafax
Niles
|
Again, that is going to depend on usage. You may need an additional
server just to handle faxes if you are running many instances as they
are CPU intensive.
If you already have a bunch of single line manual fax machines, then a
T card and a channel bank are the way to go.
Thanks,
Steve Totaro |
|
| Back to top |
|
|
stotaro at totarotechn...
Guest
|
| Posted: Wed May 21, 2008 9:54 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Wed, May 21, 2008 at 10:51 AM, Sanjay Rajdev
<sanjay.rajdev at featherstoneinformatics.com> wrote:
| Quote: | We would like to do something similar to efax, where we can send mail to
send fax or something similar. I tried to install Asterisk Fax
http://asterfax.sourceforge.net/ but was not able to compile it with
Asterisk 1.4.19.2, I have read that they recommend Asterisk 1.2.X and older
version of SpanDSP.
Regards,
Sanjay Rajdev
|
Then check out Hylafax and IAXmodem. Hylafax has alot of client apps
too. As I said before, it is CPU intensive, so you may need separate
machines to handle fax. A direct crossover cable for network is the
best to eliminate any latency.
Thanks,
Steve Totaro |
|
| Back to top |
|
|
faxguy at howardsilvan...
Guest
|
| Posted: Wed May 21, 2008 10:56 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
Steve Totaro wrote:
| Quote: | You may need an additional
server just to handle faxes if you are running many instances as they
are CPU intensive.
|
iaxmodem is not CPU intensive. 100 of them aren't. You can put that
many on a typical modern machine and have them all faxing simultaneously
and not see a dent in CPU due to iaxmodem.
Lee. |
|
| Back to top |
|
|
stotaro at totarotechn...
Guest
|
| Posted: Wed May 21, 2008 11:00 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Wed, May 21, 2008 at 11:56 AM, Lee Howard <faxguy at howardsilvan.com> wrote:
| Quote: | Steve Totaro wrote:
| Quote: | You may need an additional
server just to handle faxes if you are running many instances as they
are CPU intensive.
|
iaxmodem is not CPU intensive. 100 of them aren't. You can put that
many on a typical modern machine and have them all faxing simultaneously
and not see a dent in CPU due to iaxmodem.
Lee.
|
Hylafax. Iaxmodem doesn't do much good by itself.
Thanks,
Steve Totaro |
|
| Back to top |
|
|
stotaro at totarotechn...
Guest
|
| Posted: Wed May 21, 2008 11:03 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Wed, May 21, 2008 at 12:00 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:
| Quote: | On Wed, May 21, 2008 at 11:56 AM, Lee Howard <faxguy at howardsilvan.com> wrote:
| Quote: | Steve Totaro wrote:
| Quote: | You may need an additional
server just to handle faxes if you are running many instances as they
are CPU intensive.
|
iaxmodem is not CPU intensive. 100 of them aren't. You can put that
many on a typical modern machine and have them all faxing simultaneously
and not see a dent in CPU due to iaxmodem.
Lee.
|
Hylafax. Iaxmodem doesn't do much good by itself.
Thanks,
Steve Totaro
|
Probably has more to do with PDFs than tiffs too. I always go with PDF.
Thanks,
Steve Totaro |
|
| Back to top |
|
|
benny+usenet at amorse...
Guest
|
| Posted: Thu May 22, 2008 5:58 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
"Steve Totaro" <stotaro at totarotechnologies.com> writes:
| Quote: | Then check out Hylafax and IAXmodem. Hylafax has alot of client apps
too. As I said before, it is CPU intensive, so you may need separate
machines to handle fax. A direct crossover cable for network is the
best to eliminate any latency.
|
If you run iaxmodem on the Asterisk server, you can use something like
termnetd to provide a virtual serial port to Hylafax over the network.
Then latency, jitter, and packet loss becomes much less of a problem.
Now, what's the story on Hylafax+? How is that different from Hylafax?
/Benny |
|
| Back to top |
|
|
gordon+asterisk at dro...
Guest
|
| Posted: Thu May 22, 2008 6:34 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
On Thu, 22 May 2008, Benny Amorsen wrote:
| Quote: | "Steve Totaro" <stotaro at totarotechnologies.com> writes:
| Quote: | Then check out Hylafax and IAXmodem. Hylafax has alot of client apps
too. As I said before, it is CPU intensive, so you may need separate
machines to handle fax. A direct crossover cable for network is the
best to eliminate any latency.
|
If you run iaxmodem on the Asterisk server, you can use something like
termnetd to provide a virtual serial port to Hylafax over the network.
Then latency, jitter, and packet loss becomes much less of a problem.
|
Something that's always confused me - IAXmodem is built on spandsp. RxFAX
is also built on spandsp. RxFAX gets one step closer to the data stream
(no copper/IP in the way), so why are people using (& suggesting) Hylafax
over RxFAX?
(and I'm just talking about receiving faxes here - Can see where there's a
case for using something clever to send faxes, but I've yet to have any
clients who don't have a traditional FAX machine - the paper-less office is
still 20 years away 
Now it may be that the post fax reception processing is cpu intensive
(converting it to a TIFF/PDF, storing it, emailling it, etc.), but I've
not actually had any issues with this - although admittedly, I'm only
dealing with 1 or 2 fax receptors per site.
Just thinking out loud really...
Gordon |
|
| Back to top |
|
|
faxguy at howardsilvan...
Guest
|
| Posted: Thu May 22, 2008 7:26 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
Benny Amorsen wrote:
| Quote: | Now, what's the story on Hylafax+? How is that different from Hylafax?
|
See:
http://hylafax.sourceforge.net/about.php
Thanks,
Lee. |
|
| Back to top |
|
|
faxguy at howardsilvan...
Guest
|
| Posted: Thu May 22, 2008 7:32 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
Gordon Henderson wrote:
| Quote: | Something that's always confused me - IAXmodem is built on spandsp. RxFAX
is also built on spandsp. RxFAX gets one step closer to the data stream
(no copper/IP in the way), so why are people using (& suggesting) Hylafax
over RxFAX?
|
spandsp includes a lot of stuff. In spandsp there are the fax modems:
V.21, V.27ter, V.29, and V.17. There is also a Class 1/1.0 DCE
interface (T.31). There is also a T.30 (fax protocol) driver. There is
also a T.38 driver in there. There is other stuff there, too.
IAXmodem uses the fax modems and the T.31 DCE... its main purpose being
to function with other applications that have their own Class 1 T.30
drivers such as HylaFAX.
RxFAX (and TxFAX) also uses the fax modems, but doesn't use the T.31
DCE, but instead uses the T.30 driver.
So the difference underneath the hood really has to do with where the
fax protocol engine/driver is. When using IAXmodem the protocol is done
by HylaFAX. When using RxFAX/TxFAX the protocol is done within spandsp.
Thanks,
Lee. |
|
| Back to top |
|
|
benny+usenet at amorse...
Guest
|
| Posted: Thu May 22, 2008 8:02 am Post subject: [asterisk-users] Fax solution for Asterisk |
|
|
Gordon Henderson <gordon+asterisk at drogon.net> writes:
| Quote: | RxFAX gets one step closer to the data stream (no copper/IP in the
way), so why are people using (& suggesting) Hylafax over RxFAX?
|
When we piloted our deployment, rxfax didn't manage to receive faxes
correctly as often as Hylafax did. We never found out why; we simply
picked Hylafax.
/Benny |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Search
