asterisk users - Mar 2008 - authentication number at the end of the number before calls go through.

Hi,

I need to create a simple number checking for authorizing the calls. if a
person dial 91800555121212345 where 12345 is the authorization code. If the
authorization code is correct the call will go through if not it will play
something saying wrong authorization code or just hangup.

This my dialplan to get the authorization code

AUTH=12345

exten => _9.,1,Answer()
exten => _9.,n,Set(CHECKER=${EXTEN:-5})
exten => _9.,n,GotoIF("$[{CHECKER}" != "${AUTH}"]?die)

exten => _9.,n,Dial(SIP/${EXTEN}/${TRUNK}) <------------- This is my
problem
how can i delete the last 5 digit so the number will be sent to the carrier
is valid

exten => _9.,n(die),Hangup()


btw the number being dialled is not standard. Sometimes its 10 digits
sometimes it 7 digits and most of the time it's 6 digits.


Thanks!

-- 
Regards,
Mark Quitoriano
http://asterisk.org.ph
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ok i got the answer

Substrings    ${foo:*offset*:*length*}

returns a substring of the string *foo*, beginning at offset *offset* and
returning the next *length* characters.

   - If *offset* is negative, it is taken leftwards from the right hand
   end of the string.
   - If *length* is omitted or is negative, then all the rest of the
   string beginning at *offset* is returned.


Examples:

   ${123456789:1}        - returns the string 23456789
   ${123456789:-4}       - returns the string 6789
   ${123456789:0:3}      - returns the string 123
   ${123456789:2:3}      - returns the string 345
   ${123456789:-4:3}     - returns the string 678

Examples of use:

   exten => _NXX.,1,SetVar(areacode=${EXTEN:0:3})   - get the first 3
digits of ${EXTEN}

   exten => _516XXXXXXX,1,Dial(${EXTEN:3})          - get all but the
first 3 digits of ${EXTEN}

   exten => 100,1,SetVar(whichVowel=4)

   exten => 100,2,SetVar(foo=AEIOU:${whichVowel}:1) - sets ${foo} to
the single letter 'U'




On Wed, Mar 12, 2008 at 2:22 PM, Mark Quitoriano <markquitoriano at
gmail.com>
wrote:
> Hi,
>
> I need to create a simple number checking for authorizing the calls. if a
> person dial 91800555121212345 where 12345 is the authorization code. If the
> authorization code is correct the call will go through if not it will play
> something saying wrong authorization code or just hangup.
>
> This my dialplan to get the authorization code
>
> AUTH=12345
>
> exten => _9.,1,Answer()
> exten => _9.,n,Set(CHECKER=${EXTEN:-5})
> exten => _9.,n,GotoIF("$[{CHECKER}" !=
"${AUTH}"]?die)
>
> exten => _9.,n,Dial(SIP/${EXTEN}/${TRUNK}) <------------- This is my
> problem how can i delete the last 5 digit so the number will be sent to the
> carrier is valid
>
> exten => _9.,n(die),Hangup()
>
>
> btw the number being dialled is not standard. Sometimes its 10 digits
> sometimes it 7 digits and most of the time it's 6 digits.
>
>
> Thanks!
>
> --
> Regards,
> Mark Quitoriano
> http://asterisk.org.ph
>


-- 
Regards,
Mark Quitoriano
http://asterisk.org.ph
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On Wednesday 12 March 2008 01:22:56 Mark Quitoriano
wrote:
> Hi,
>
> I need to create a simple number checking for authorizing the calls. if a
> person dial 91800555121212345 where 12345 is the authorization code. If the
> authorization code is correct the call will go through if not it will play
> something saying wrong authorization code or just hangup.
>
> This my dialplan to get the authorization code
>
> AUTH=12345
>
> exten => _9.,1,Answer()
> exten => _9.,n,Set(CHECKER=${EXTEN:-5})
> exten => _9.,n,GotoIF("$[{CHECKER}" !=
"${AUTH}"]?die)
>
> exten => _9.,n,Dial(SIP/${EXTEN}/${TRUNK}) <------------- This is my
> problem how can i delete the last 5 digit so the number will be sent to the
> carrier is valid
Dial(SIP/${EXTEN:0:$[${LEN(${EXTEN})} - 5]}/${TRUNK})

-- 
Tilghman

On Wednesday 12 March 2008 01:29:16 Mark Quitoriano
wrote:
> ok i got the answer
>
> Substrings    ${foo:*offset*:*length*}
>
> returns a substring of the string *foo*, beginning at offset *offset* and
> returning the next *length* characters.
>
>    - If *offset* is negative, it is taken leftwards from the right hand
>    end of the string.
>    - If *length* is omitted or is negative, then all the rest of the
>    string beginning at *offset* is returned.
In 1.4 and 1.6, a negative length reduces the length of the total string:

${EXTEN:0:-5} gives you everything but the last 5 digits.

-- 
Tilghman

The Authenticate application is pretty good for this sort of thing...

PaulH


On Wed, 2008-03-12 at 14:22 +0800, Mark Quitoriano
wrote:
> Hi,
> 
> I need to create a simple number checking for authorizing the calls.
> if a person dial 91800555121212345 where 12345 is the authorization
> code. If the authorization code is correct the call will go through if
> not it will play something saying wrong authorization code or just
> hangup.
> 
> This my dialplan to get the authorization code
> 
> AUTH=12345
> 
> exten => _9.,1,Answer()
> exten => _9.,n,Set(CHECKER=${EXTEN:-5})
> exten => _9.,n,GotoIF("$[{CHECKER}" !=
"${AUTH}"]?die)
> 
> exten => _9.,n,Dial(SIP/${EXTEN}/${TRUNK}) <------------- This is my
> problem how can i delete the last 5 digit so the number will be sent
> to the carrier is valid
> 
> exten => _9.,n(die),Hangup()
> 
> 
> btw the number being dialled is not standard. Sometimes its 10 digits
> sometimes it 7 digits and most of the time it's 6 digits.
> 
> 
> Thanks!
> 
> -- 
> Regards,
> Mark Quitoriano
> http://asterisk.org.ph
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