asterisk users - Jun 2015 - Run script action when Dahdi phone goes off-hook?

Hi,

Long story short - I have an ancient Britsh Telecom phone attached to my 
Asterisk PBX via Dahdi. It works beautifully, receiving calls, and the 
call quality is excellent. However, dialling out is impossible, as 
Asterisk consistently mis-reads the number of pulses the dial sends (it 
could be a squiffy dial, I'm not sure). Not to mention the fact that, in 
today's modern "want it now" age, waiting up to 3 seconds between
digits
whilst the rotary dial does its thing gets old very quickly...

As with all Dahdi connected phones, when I lift the handset, I 
immediately see:

  -- Starting simple switch on 'DAHDI/x-y'

Can I run a script (either in extensions.conf, or ael, or whatever) when 
that is detected? If so, I will create a small app which allows me to 
type a telephone number on my computer, I can then lift the phone & the 
script will go find the number I typed, and dial it for me.

Thanks in advance!
Ade.

On Fri, Jun 19, 2015 at 2:14 PM, asterisk <asterisk at
solutionengineers.com>
wrote:
>
> Hi,
>
> Long story short - I have an ancient Britsh Telecom phone attached to my
> Asterisk PBX via Dahdi. It works beautifully, receiving calls, and the call
> quality is excellent. However, dialling out is impossible, as Asterisk
> consistently mis-reads the number of pulses the dial sends (it could be a
> squiffy dial, I'm not sure). Not to mention the fact that, in
today's
> modern "want it now" age, waiting up to 3 seconds between digits
whilst the
> rotary dial does its thing gets old very quickly...
>
> As with all Dahdi connected phones, when I lift the handset, I immediately
> see:
>
>  -- Starting simple switch on 'DAHDI/x-y'
>
> Can I run a script (either in extensions.conf, or ael, or whatever) when
> that is detected? If so, I will create a small app which allows me to type
> a telephone number on my computer, I can then lift the phone & the
script
> will go find the number I typed, and dial it for me.
>
Look at this option in the chan_dahdi.conf.sample file:

; Specify whether the channel should be answered immediately or if the
simple
; switch should provide dialtone, read digits, etc.
; Note: If immediate=yes the dialplan execution will always start at
extension
; 's' priority 1 regardless of the dialed number!
;
;immediate=yes

Richard
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On 19/06/2015 20:45, Richard Mudgett wrote:
>
>
> On Fri, Jun 19, 2015 at 2:14 PM, asterisk 
> <asterisk at solutionengineers.com 
> <mailto:asterisk at solutionengineers.com>> wrote:
>
>
>     -- Starting simple switch on 'DAHDI/x-y'
>
>     Can I run a script (either in extensions.conf, or ael, or
>     whatever) when that is detected? If so, I will create a small app
>     which allows me to type a telephone number on my computer, I can
>     then lift the phone & the script will go find the number I typed,
>     and dial it for me.
>
>
> Look at this option in the chan_dahdi.conf.sample file:
>
> ; Specify whether the channel should be answered immediately or if the 
> simple
> ; switch should provide dialtone, read digits, etc.
> ; Note: If immediate=yes the dialplan execution will always start at 
> extension
> ; 's' priority 1 regardless of the dialed number!
> ;
> ;immediate=yes
>
> Richard
>
Oops, didn't spot that. That's perfect, thanks Richard!


Cheers,
Ade.
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On Friday 19 Jun 2015, asterisk wrote:
> Hi,
> 
> Long story short - I have an ancient Britsh Telecom phone attached to my
> Asterisk PBX via Dahdi. It works beautifully, receiving calls, and the
> call quality is excellent. However, dialling out is impossible, as
> Asterisk consistently mis-reads the number of pulses the dial sends (it
> could be a squiffy dial, I'm not sure). Not to mention the fact that,
in
> today's modern "want it now" age, waiting up to 3 seconds
between digits
> whilst the rotary dial does its thing gets old very quickly...
I have a GPO 746 working beautifully on my home machine, with one of the cheap 
TDM410P clones you can buy from eBay  (it's hardly a production
environment).
Your problem most likely is indeed the dial mechanism  (you could prove it by 
seeing how your card behaves with a push-button, pulse-dialling phone).

These dials are built to industrial standards.  They respond well to field-
stripping and re-lubrication, and there are guides on the Internet explaining 
how to do this  (including the old GPO documentation).

My own solution to the slow dialling issue was just to put some entries with 
short extension numbers in the relevant context of my extensions.conf linked 
to my most frequently-called destinations; so, for example, I can call my 
parents by dialling their old 4-digit number from back in the clicky-clicky 
exchange days.
> Can I run a script (either in extensions.conf, or ael, or whatever) when
> that is detected? If so, I will create a small app which allows me to
> type a telephone number on my computer, I can then lift the phone & the
> script will go find the number I typed, and dial it for me.
You can; but personally, I'd just use a CGI script to generate a call file.
Tthe script does its thing, and my phone rings; then when I answer it, the 
other person's phone starts ringing and I hear ringing-out tones.

Kontact  (and probably other PIM software)  can even run a command when you 
click onto a phone number, and embed the clicked-on number into the command; 
so I used this facility to do a wget on my make_call.cgi script.


-- 
AJS

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