asterisk users - Mar 2016 - How to recognize a name spelled letter by letter ?

Hello,

I'm wonddering if it is possible, with Asterisk and any third party module
or service, to build the following feature:

- caller dials a given extension dedicated to a given language (german,
english, ...)
- Asterisk plays a welcome audio prompt
- caller spells his or her first name letter by letter (for example, caller
spell "A", "L", "I", ...)
- Asterisk repeats spelled letters to caller.

If possible, which module is needed ?

Best regards
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Do you mean the directory( ) application that?s used as a dial by name directory
service to match caller inputs to existing names? If not, then It's not
going to be possible to simply have the user enter a digit, say ?2?, and have
Asterisk repeat a letter since the user could mean either ?A?, ?B?, or ?C?.

John

 

From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces
at lists.digium.com] On Behalf Of Olivier
Sent: Wednesday, March 23, 2016 8:53 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] How to recognize a name spelled letter by letter ?

 

Hello,

I'm wonddering if it is possible, with Asterisk and any third party module
or service, to build the following feature:

- caller dials a given extension dedicated to a given language (german, english,
...)

- Asterisk plays a welcome audio prompt

- caller spells his or her first name letter by letter (for example, caller
spell "A", "L", "I", ...)

- Asterisk repeats spelled letters to caller.

If possible, which module is needed ?

Best regards

 

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On Wednesday 23 Mar 2016, Olivier wrote:
> Hello,
> 
> I'm wonddering if it is possible, with Asterisk and any third party
module
> or service, to build the following feature:
> 
> - caller dials a given extension dedicated to a given language (german,
> english, ...)
> - Asterisk plays a welcome audio prompt
> - caller spells his or her first name letter by letter (for example, caller
> spell "A", "L", "I", ...)
> - Asterisk repeats spelled letters to caller.
> 
> If possible, which module is needed ?
> 
> Best regards
Well, I'd do the whole thing in Dialplan  (it's fairly computationally-
complete per Church and Turing),  but I'm a masochist like that :p

What you need to do is have an inner loop; in which you use WaitExten() with a 
short timeout to read a digit.  If a digit is pressed within the timeout, you 
will get directed to another extension.  There you need to compare the digit 
just pressed against the last digit pressed; and if it is the same, then you 
select the next letter on that key.  Otherwise you announce the last letter 
selected, append it to the name so far, and select the first letter on that 
key.  If you timeout, then you announce the currently selected letter, append 
it to the name so far and set no letter selected.  (This is needed, because 
you may have two letters in succession on the same key; so you must allow it 
to timeout before you can enter the next letter.)  If you timeout with no 
letter selected, you increase a counter; and if this gets to some critical 
number, you repeat the prompt:  Background() the original announcement to 
spell their name, and announce the letters entered so far.  If the 1 key is 
pressed once, backspace  (and after the timeout, announce the remaining 
letters);  two presses within timeout clears the name entered so far and 
starts again from scratch.


So, for example, someone might enter:
2 [set current letter to "A"]
(user waits for timeout) [Store and say "A". Set current letter to
""]
5 [Set current letter to "J"]
5 [set current letter to "K"]
5 [set current letter to "L"]
4 [4 != 5, so store and say "L". Set current letter to "G"]
4 [set current letter to "H"]
4 [set current letter to "I"]
7 [7 != 4, so store and say "I". Set current letter to "P"]
7 [set current letter to "Q"]
7 [set current letter to "R"]
7 [set current letter to "S"]
6 [6 != 7, so store and say "S". Set current letter to "M"]
6 [set current letter to "N"]
6 [set current letter to "O"]
(User waits for timeout) [Store and say "O". Set current letter to
""]
6 [set current letter to "M"]
6 [set current letter to "N"]
* [store and say "N". We now have "ALISON". Go to next
context]

For the sake of your own sanity  (or that of your unlucky successor),  use 
maningful labels in your GoToIf() statements; and be sure to comment the 
resulting code liberally, so it looks a little bit less of an unwholesome 
mess.


-- 
AJS

Note:  Originating address only accepts e-mail from list!  If replying off-
list, change address to asterisk1list at earthshod dot co dot uk .

I'm thinking about something to delegate provisionning to end users:
a new employee joins the company, the system I'm after let him enter his
own name himself, once for all.

Typing letters through numerical dialpad is not very convenient.
Using Speech Recognition could be interesting if applicable.

2016-03-23 14:38 GMT+01:00 Tech Support <asterisk at voipbusiness.us>:
>     Do you mean the directory( ) application that?s used as a dial by name
> directory service to match caller inputs to existing names? If not, then
> It's not going to be possible to simply have the user enter a digit,
say
> ?2?, and have Asterisk repeat a letter since the user could mean either
> ?A?, ?B?, or ?C?.
>
> John
>
>
>
> *From:* asterisk-users-bounces at lists.digium.com [mailto:
> asterisk-users-bounces at lists.digium.com] *On Behalf Of *Olivier
> *Sent:* Wednesday, March 23, 2016 8:53 AM
> *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> *Subject:* [asterisk-users] How to recognize a name spelled letter by
> letter ?
>
>
>
> Hello,
>
> I'm wonddering if it is possible, with Asterisk and any third party
module
> or service, to build the following feature:
>
> - caller dials a given extension dedicated to a given language (german,
> english, ...)
>
> - Asterisk plays a welcome audio prompt
>
> - caller spells his or her first name letter by letter (for example,
> caller spell "A", "L", "I", ...)
>
> - Asterisk repeats spelled letters to caller.
>
> If possible, which module is needed ?
>
> Best regards
>
>
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
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2016-03-23 14:38 GMT+01:00 A J Stiles <asterisk_list at earthshod.co.uk>:
> On Wednesday 23 Mar 2016, Olivier wrote:
> > Hello,
> >
> > I'm wonddering if it is possible, with Asterisk and any third
party
> module
> > or service, to build the following feature:
> >
> > - caller dials a given extension dedicated to a given language
(german,
> > english, ...)
> > - Asterisk plays a welcome audio prompt
> > - caller spells his or her first name letter by letter (for example,
> caller
> > spell "A", "L", "I", ...)
> > - Asterisk repeats spelled letters to caller.
> >
> > If possible, which module is needed ?
> >
> > Best regards
>
> Well, I'd do the whole thing in Dialplan  (it's fairly
computationally-
> complete per Church and Turing),  but I'm a masochist like that :p
>
> What you need to do is have an inner loop; in which you use WaitExten()
> with a
> short timeout to read a digit.  If a digit is pressed within the timeout,
> you
> will get directed to another extension.  There you need to compare the
> digit
> just pressed against the last digit pressed; and if it is the same, then
> you
> select the next letter on that key.  Otherwise you announce the last letter
> selected, append it to the name so far, and select the first letter on that
> key.  If you timeout, then you announce the currently selected letter,
> append
> it to the name so far and set no letter selected.  (This is needed, because
> you may have two letters in succession on the same key; so you must allow
> it
> to timeout before you can enter the next letter.)  If you timeout with no
> letter selected, you increase a counter; and if this gets to some critical
> number, you repeat the prompt:  Background() the original announcement to
> spell their name, and announce the letters entered so far.  If the 1 key is
> pressed once, backspace  (and after the timeout, announce the remaining
> letters);  two presses within timeout clears the name entered so far and
> starts again from scratch.
>
>
> So, for example, someone might enter:
> 2 [set current letter to "A"]
> (user waits for timeout) [Store and say "A". Set current letter
to ""]
> 5 [Set current letter to "J"]
> 5 [set current letter to "K"]
> 5 [set current letter to "L"]
> 4 [4 != 5, so store and say "L". Set current letter to
"G"]
> 4 [set current letter to "H"]
> 4 [set current letter to "I"]
> 7 [7 != 4, so store and say "I". Set current letter to
"P"]
> 7 [set current letter to "Q"]
> 7 [set current letter to "R"]
> 7 [set current letter to "S"]
> 6 [6 != 7, so store and say "S". Set current letter to
"M"]
> 6 [set current letter to "N"]
> 6 [set current letter to "O"]
> (User waits for timeout) [Store and say "O". Set current letter
to ""]
> 6 [set current letter to "M"]
> 6 [set current letter to "N"]
> * [store and say "N". We now have "ALISON". Go to next
context]
>
> For the sake of your own sanity  (or that of your unlucky successor),  use
> maningful labels in your GoToIf() statements; and be sure to comment the
> resulting code liberally, so it looks a little bit less of an unwholesome
> mess.
>
Yes I agree.

I also thought of using some IP Phone supporting custom XML application as
having a feedback on screen is helpful.

Anyway, my question is about Speech recognition as this could be faster and
portable to any handset.
I've given Google Speech Web API a short try, and it is not capable to
recognize letters: when I spelled "A", it recognized "Air" !
>
>
> --
> AJS
>
> Note:  Originating address only accepts e-mail from list!  If replying off-
> list, change address to asterisk1list at earthshod dot co dot uk .
>
> --
> _____________________________________________________________________
> -- Bandwidth and Colocation Provided by http://www.api-digital.com --
> New to Asterisk? Join us for a live introductory webinar every Thurs:
>                http://www.asterisk.org/hello
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
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I've just found [1]
It seems to cover what I'm after.
I'll try to evaluate it.

I would be curious to learn about previous experiences with Lexicons and
Lumenvox.


[1] http://www.lumenvox.com/knowledgebase/index.php?/article/AA-01064/0

2016-03-23 13:52 GMT+01:00 Olivier <oza.4h07 at gmail.com>:
> Hello,
>
> I'm wonddering if it is possible, with Asterisk and any third party
module
> or service, to build the following feature:
>
> - caller dials a given extension dedicated to a given language (german,
> english, ...)
> - Asterisk plays a welcome audio prompt
> - caller spells his or her first name letter by letter (for example,
> caller spell "A", "L", "I", ...)
> - Asterisk repeats spelled letters to caller.
>
> If possible, which module is needed ?
>
> Best regards
>
>
>
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