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[asterisk-users] Handling multiple fax machines and the fax extension, and general call routing

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stotaro at totarotechn...
Guest

Posted: Thu May 22, 2008 3:07 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

On Thu, May 22, 2008 at 3:59 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Hi,

I've been trying to implement a fax solution using a TDM880 (8 analog ports,
FXS). I have a PRI circuit that terminates on a TE120 at the same server.
The server is running Asterisk 1.4.18.

The idea is to have seven fax machines, each with a different number,
connected directly to the TDM880. Zaptel/Zapata are configured and work
properly (1-24 is the TE120, 25-32 is the TDM880). Voice calls are working
great, and a single fax machine works well.

I seem to be having some difficulty with my dialplan when using the fax
extension, however. Here is an abbreviated example of my dialplan:

extensions.conf

[internal]
exten => 2001,1,Dial(SIP/2001)
exten => 2002,1,Dial(SIP/2002)

; dial out
exten => _1NXXNXXXXXX,1,Dial(Zap/G2/${EXTEN})

exten => fax,1,Goto(${EXTEN})

; fax machines
exten => 1000,1,Answer()
exten => 1000,n,Wait(3)
exten => 1000,n,Dial(Zap/25)

exten => 1001,1,Answer()
exten => 1001,n,Wait(3)
exten => 1001,n,Dial(Zap/26)

exten => 1002,1,Answer()
exten => 1002,n,Wait(3)
exten => 1002,n,Dial(Zap/27)

[external]

exten => 2001,1,Goto(internal,2001,1)
exten => 2002,2,Goto(internal,2002,1)

exten => fax,1,Goto(internal,${EXTEN},1)

exten => 1000,1,Answer()
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

exten => 1001,1,Answer()
exten => 1001,n,Wait(3)
exten => 1001,n,Goto(internal,1001,1)

exten => 1002,1,Answer()
exten => 1002,n,Wait(3)
exten => 1002,n,Goto(internal,1002,1)

-----------------------------------

My PRI provider only hands off the last 4 digits, so the above works well
for voice calls. The fax detection extensions DO detect faxes properly
(faxdetect=both is set in zapata.conf), however I'm not sure how to route
them to the proper line (Zap/25, etc.) if I route the calls into a catch all
extension such as 's'. The above doesn't work since the $[EXTEN} variable
gets changed from the dialed number, such as '1001', to 'fax' and dives into
a loop. By changing the fax extension lines to something like this:

exten => fax,1,Dial(Zap/25)

I can get a single line to dial and receive without any problems, but this
obviously will not work for multiple fax machines.

What's the best method for properly routing numbers that get routed into a
catch all extension, such as 's'? I've been digging around in the Asterisk:
TFOT v2 and on Google, but I haven't been able to find an example of this.

exten => fax,1,Dial(Zap/25,5)
exten => fax,n,Dial(Zap/26,5)
exten => fax,n,Dial(Zap/27,5)

Timeout on 5 seconds roll to the next line.

Thanks,
Steve Totaro

stotaro at totarotechn...
Guest

Posted: Thu May 22, 2008 3:10 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

On Thu, May 22, 2008 at 4:07 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

On Thu, May 22, 2008 at 3:59 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

exten => fax,1,Dial(Zap/25,5)
exten => fax,n,Dial(Zap/26,5)
exten => fax,n,Dial(Zap/27,5)

Timeout on 5 seconds roll to the next line.

Thanks,
Steve Totaro

If you want to use DIDs then add exten =
NNNN,1,Dial(correspondingDAHDIchan) the NNNN is going to correspond
with the last four digits of your DID, what the telco is sending....

Thanks,
Steve Totaro

stotaro at totarotechn...
Guest

Posted: Thu May 22, 2008 3:42 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

So you have mapped a DID (last four digits) to your DHADI port in the
regular extensions context, not the fax context? What is the CLI
output?

Thanks,
Steve Totaro

PS. Figured I would start with DHADI now.....
On Thu, May 22, 2008 at 4:37 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Thanks for your response Steve. You almost lost me when I saw DAHDI, that's
going to take some getting used to.

Using 'n' for the faxes will not work since these fax machines are all
department dependent and they're very territorial.

In my config I'm using Dial commands as you described in your second post.
I'm not sure what I could do differently there...?

On Thu, May 22, 2008 at 4:10 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

On Thu, May 22, 2008 at 4:07 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

On Thu, May 22, 2008 at 3:59 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Hi,

I've been trying to implement a fax solution using a TDM880 (8 analog
ports,
FXS). I have a PRI circuit that terminates on a TE120 at the same
server.
The server is running Asterisk 1.4.18.

The idea is to have seven fax machines, each with a different number,
connected directly to the TDM880. Zaptel/Zapata are configured and work
properly (1-24 is the TE120, 25-32 is the TDM880). Voice calls are
working
great, and a single fax machine works well.

I seem to be having some difficulty with my dialplan when using the fax
extension, however. Here is an abbreviated example of my dialplan:

extensions.conf

[internal]
exten => 2001,1,Dial(SIP/2001)
exten => 2002,1,Dial(SIP/2002)

; dial out
exten => _1NXXNXXXXXX,1,Dial(Zap/G2/${EXTEN})

exten => fax,1,Goto(${EXTEN})

; fax machines
exten => 1000,1,Answer()
exten => 1000,n,Wait(3)
exten => 1000,n,Dial(Zap/25)

exten => 1001,1,Answer()
exten => 1001,n,Wait(3)
exten => 1001,n,Dial(Zap/26)

exten => 1002,1,Answer()
exten => 1002,n,Wait(3)
exten => 1002,n,Dial(Zap/27)

[external]

exten => 2001,1,Goto(internal,2001,1)
exten => 2002,2,Goto(internal,2002,1)

exten => fax,1,Goto(internal,${EXTEN},1)

exten => 1000,1,Answer()
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

exten => 1001,1,Answer()
exten => 1001,n,Wait(3)
exten => 1001,n,Goto(internal,1001,1)

exten => 1002,1,Answer()
exten => 1002,n,Wait(3)
exten => 1002,n,Goto(internal,1002,1)

-----------------------------------

My PRI provider only hands off the last 4 digits, so the above works
well
for voice calls. The fax detection extensions DO detect faxes properly
(faxdetect=both is set in zapata.conf), however I'm not sure how to
route
them to the proper line (Zap/25, etc.) if I route the calls into a
catch all
extension such as 's'. The above doesn't work since the $[EXTEN}
variable
gets changed from the dialed number, such as '1001', to 'fax' and dives
into
a loop. By changing the fax extension lines to something like this:

exten => fax,1,Dial(Zap/25)

I can get a single line to dial and receive without any problems, but
this
obviously will not work for multiple fax machines.

What's the best method for properly routing numbers that get routed
into a
catch all extension, such as 's'? I've been digging around in the
Asterisk:
TFOT v2 and on Google, but I haven't been able to find an example of
this.

exten => fax,1,Dial(Zap/25,5)
exten => fax,n,Dial(Zap/26,5)
exten => fax,n,Dial(Zap/27,5)

Timeout on 5 seconds roll to the next line.

Thanks,
Steve Totaro

If you want to use DIDs then add exten =
NNNN,1,Dial(correspondingDAHDIchan) the NNNN is going to correspond
with the last four digits of your DID, what the telco is sending....

Thanks,
Steve Totaro

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thrills3k3r at gmail.com
Guest

Posted: Thu May 22, 2008 4:07 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

I'm using two contexts, [internal] and [external] as in the example. There
are four digit extensions for each fax machine in my [external] context (the
[external] context is the context in which my PRI terminates) as well as in
the [internal] context.

I just found that I'm able to 'cheat' slightly. If I capture the ${EXTEN}
into another variable and simply call that in the fax extension like so:

[external]
exten => fax,1,Goto(internal,${FAXER},1)

exten => 1000,1,Answer()
exten => 1000,n,Set(FAXER=${EXTEN})
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

--------------------------------

This appears to redirect the call to the appropriate entry under [internal].
This isn't exactly elegant, but I think it will work. It seems odd to me
that there isn't a better method of routing calls once they've been routed
into a catch-all extension such as 's'.
On Thu, May 22, 2008 at 4:42 PM, Steve Totaro <
stotaro at totarotechnologies.com> wrote:

Quote:

So you have mapped a DID (last four digits) to your DHADI port in the
regular extensions context, not the fax context? What is the CLI
output?

Thanks,
Steve Totaro

PS. Figured I would start with DHADI now.....

On Thu, May 22, 2008 at 4:37 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Thanks for your response Steve. You almost lost me when I saw DAHDI,

that's

Quote:

going to take some getting used to.

Using 'n' for the faxes will not work since these fax machines are all
department dependent and they're very territorial.

In my config I'm using Dial commands as you described in your second

post.

Quote:

I'm not sure what I could do differently there...?

On Thu, May 22, 2008 at 4:10 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

On Thu, May 22, 2008 at 4:07 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

On Thu, May 22, 2008 at 3:59 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

work

Quote:

properly (1-24 is the TE120, 25-32 is the TDM880). Voice calls are
working
great, and a single fax machine works well.

I seem to be having some difficulty with my dialplan when using the

fax

Quote:

extension, however. Here is an abbreviated example of my dialplan:

extensions.conf

[internal]
exten => 2001,1,Dial(SIP/2001)
exten => 2002,1,Dial(SIP/2002)

; dial out
exten => _1NXXNXXXXXX,1,Dial(Zap/G2/${EXTEN})

exten => fax,1,Goto(${EXTEN})

; fax machines
exten => 1000,1,Answer()
exten => 1000,n,Wait(3)
exten => 1000,n,Dial(Zap/25)

exten => 1001,1,Answer()
exten => 1001,n,Wait(3)
exten => 1001,n,Dial(Zap/26)

exten => 1002,1,Answer()
exten => 1002,n,Wait(3)
exten => 1002,n,Dial(Zap/27)

[external]

exten => 2001,1,Goto(internal,2001,1)
exten => 2002,2,Goto(internal,2002,1)

exten => fax,1,Goto(internal,${EXTEN},1)

exten => 1000,1,Answer()
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

exten => 1001,1,Answer()
exten => 1001,n,Wait(3)
exten => 1001,n,Goto(internal,1001,1)

exten => 1002,1,Answer()
exten => 1002,n,Wait(3)
exten => 1002,n,Goto(internal,1002,1)

-----------------------------------

My PRI provider only hands off the last 4 digits, so the above works
well
for voice calls. The fax detection extensions DO detect faxes

properly

Quote:

(faxdetect=both is set in zapata.conf), however I'm not sure how to
route
them to the proper line (Zap/25, etc.) if I route the calls into a
catch all
extension such as 's'. The above doesn't work since the $[EXTEN}
variable
gets changed from the dialed number, such as '1001', to 'fax' and

dives

Quote:

into
a loop. By changing the fax extension lines to something like this:

exten => fax,1,Dial(Zap/25)

I can get a single line to dial and receive without any problems, but
this
obviously will not work for multiple fax machines.

What's the best method for properly routing numbers that get routed
into a
catch all extension, such as 's'? I've been digging around in the
Asterisk:
TFOT v2 and on Google, but I haven't been able to find an example of
this.

exten => fax,1,Dial(Zap/25,5)
exten => fax,n,Dial(Zap/26,5)
exten => fax,n,Dial(Zap/27,5)

Timeout on 5 seconds roll to the next line.

Thanks,
Steve Totaro

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stotaro at totarotechn...
Guest

Posted: Thu May 22, 2008 4:15 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

You should not have to do this if you setup your contexts and
extensions correctly. You don't need faxdetect if you are using
dedicated fax DIDs. The last four digits MUST match what the telco is
sending you in exten=XXXX.

Thanks,
Steve Totaro

On Thu, May 22, 2008 at 5:07 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

I'm using two contexts, [internal] and [external] as in the example. There
are four digit extensions for each fax machine in my [external] context (the
[external] context is the context in which my PRI terminates) as well as in
the [internal] context.

I just found that I'm able to 'cheat' slightly. If I capture the ${EXTEN}
into another variable and simply call that in the fax extension like so:

[external]
exten => fax,1,Goto(internal,${FAXER},1)

exten => 1000,1,Answer()
exten => 1000,n,Set(FAXER=${EXTEN})
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

--------------------------------

This appears to redirect the call to the appropriate entry under [internal].
This isn't exactly elegant, but I think it will work. It seems odd to me
that there isn't a better method of routing calls once they've been routed
into a catch-all extension such as 's'.

On Thu, May 22, 2008 at 4:42 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

So you have mapped a DID (last four digits) to your DHADI port in the
regular extensions context, not the fax context? What is the CLI
output?

Thanks,
Steve Totaro

PS. Figured I would start with DHADI now.....

On Thu, May 22, 2008 at 4:37 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Thanks for your response Steve. You almost lost me when I saw DAHDI,
that's
going to take some getting used to.

Using 'n' for the faxes will not work since these fax machines are all
department dependent and they're very territorial.

In my config I'm using Dial commands as you described in your second
post.
I'm not sure what I could do differently there...?

On Thu, May 22, 2008 at 4:10 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

stotaro at totarotechn...
Guest

Posted: Thu May 22, 2008 4:29 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

Echocancelwhenbridged=no should work.

Thanks,
Steve Totaro

On Thu, May 22, 2008 at 5:26 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Maybe that's what I'm missing. I was under the assumption that you had to
use fax detect if you did faxing due to the echo cancellation, so fax detect
could shut it off for fax calls.

So with dedicated fax lines, there's no need to use fax detect?

On Thu, May 22, 2008 at 5:15 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

I'm using two contexts, [internal] and [external] as in the example.
There
are four digit extensions for each fax machine in my [external] context
(the
[external] context is the context in which my PRI terminates) as well as
in
the [internal] context.

I just found that I'm able to 'cheat' slightly. If I capture the
${EXTEN}
into another variable and simply call that in the fax extension like so:

[external]
exten => fax,1,Goto(internal,${FAXER},1)

exten => 1000,1,Answer()
exten => 1000,n,Set(FAXER=${EXTEN})
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

--------------------------------

This appears to redirect the call to the appropriate entry under
[internal].
This isn't exactly elegant, but I think it will work. It seems odd to me
that there isn't a better method of routing calls once they've been
routed
into a catch-all extension such as 's'.

On Thu, May 22, 2008 at 4:42 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

So you have mapped a DID (last four digits) to your DHADI port in the
regular extensions context, not the fax context? What is the CLI
output?

Thanks,
Steve Totaro

PS. Figured I would start with DHADI now.....

On Thu, May 22, 2008 at 4:37 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Thanks for your response Steve. You almost lost me when I saw DAHDI,
that's
going to take some getting used to.

Using 'n' for the faxes will not work since these fax machines are
all
department dependent and they're very territorial.

In my config I'm using Dial commands as you described in your second
post.
I'm not sure what I could do differently there...?

On Thu, May 22, 2008 at 4:10 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

stotaro at totarotechn...
Guest

Posted: Thu May 22, 2008 4:30 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

No faxdetect is for sharing lines with voice and fax. Never used it myself...

Thanks,
Steve Totaro

On Thu, May 22, 2008 at 5:29 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

Echocancelwhenbridged=no should work.

Thanks,
Steve Totaro

On Thu, May 22, 2008 at 5:26 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

I'm using two contexts, [internal] and [external] as in the example.
There
are four digit extensions for each fax machine in my [external] context
(the
[external] context is the context in which my PRI terminates) as well as
in
the [internal] context.

I just found that I'm able to 'cheat' slightly. If I capture the
${EXTEN}
into another variable and simply call that in the fax extension like so:

[external]
exten => fax,1,Goto(internal,${FAXER},1)

exten => 1000,1,Answer()
exten => 1000,n,Set(FAXER=${EXTEN})
exten => 1000,n,Wait(3)
exten => 1000,n,Goto(internal,1000,1)

--------------------------------

This appears to redirect the call to the appropriate entry under
[internal].
This isn't exactly elegant, but I think it will work. It seems odd to me
that there isn't a better method of routing calls once they've been
routed
into a catch-all extension such as 's'.

On Thu, May 22, 2008 at 4:42 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

Quote:

So you have mapped a DID (last four digits) to your DHADI port in the
regular extensions context, not the fax context? What is the CLI
output?

Thanks,
Steve Totaro

PS. Figured I would start with DHADI now.....

On Thu, May 22, 2008 at 4:37 PM, arkda <thrills3k3r at gmail.com> wrote:

Quote:

Thanks for your response Steve. You almost lost me when I saw DAHDI,
that's
going to take some getting used to.

Using 'n' for the faxes will not work since these fax machines are
all
department dependent and they're very territorial.

In my config I'm using Dial commands as you described in your second
post.
I'm not sure what I could do differently there...?

On Thu, May 22, 2008 at 4:10 PM, Steve Totaro
<stotaro at totarotechnologies.com> wrote:

matt at mattgwatson.ca
Guest

Posted: Thu May 22, 2008 10:22 pm Post subject: [asterisk-users] Handling multiple fax machines and the fax

On May 22, 2008 04:42:27 pm Steve Totaro wrote:

Quote:

PS. Figured I would start with DHADI now.....

psst. its DAHDI Wink

--
Matt
http://www.mattgwatson.ca

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