asterisk users - Jul 2011 - Stripping characters from ${CALLERID(num)} ?

Greetings-

On occasion, I have calls coming into an Asterisk 1.2.x system where the
${CALLERID(num)} includes '-'. Ex:

123-456-7890

How can I strip the dashes from the number, leaving me with
'1234567890'?

I've tried the following which does not appear to be working:

Dialplan:
exten => _X.,n,Set(PROPERCID=System(echo ${CALLERID(num)} | sed s/\-//g))
exten => _X.,n,NoOp(Fixed proper CID is ${PROPERCID}

Console Output:
    -- Executing [1111111111 at cidmangletest:4]
Set("SIP/w.x.y.z-b4d55ce8", "PROPERCID=System(echo 123-456-7890 |
sed s/\-//g)")
    -- Executing [1111111111 at cidmangletest:5]
NoOp("SIP/w.x.y.z-b4d55ce8", "Fixed proper CID is System(echo
123-456-7890 | sed s/-//g)")

Obviously, I'm trying to throw the CID through sed via System() to strip the
dashes. Can anyone explain how to accomplish this? Or even better yet, how to
strip the dashes directly in the dialplan without the use of System()?

Thanks!

--Tim

On Thu, 7 Jul 2011, Tim Nelson wrote:
> On occasion, I have calls coming into an Asterisk 1.2.x system where the 
> ${CALLERID(num)} includes '-'. Ex:
>
> 123-456-7890
>
> How can I strip the dashes from the number, leaving me with 
> '1234567890'?
I would do this in an AGI written in C -- but that's just me...

At the start of most of my client's dialplans I do something like:

         exten = _!.,1,                  verbose(1,[${EXTEN}@${CONTEXT}])
         exten = _!.,n,                  set(ANI=${EXTEN})
         exten = _!.,n,                  agi(block-ani,--verbose)

The block-ani AGI does something like:

) Set the BLOCK channel variable to YES

) Read the ANI channel variable

) Strips leading '+'

) Strips leading '1'

) Strips anything non-numeric

) If the preceding steps changed anything, re-set the ANI channel variable

) Looks up the NPA to see if it should be blocked, return if true

) Looks up the NPA-NXX to see if it should be blocked, return if true

) Looks up the NPA-NXX-XXXX to see if it should be blocked, return if true

) Set the BLOCK channel variable to NO

) Return to the dialplan

-- 
Thanks in advance,
-------------------------------------------------------------------------
Steve Edwards       sedwards at sedwards.com      Voice: +1-760-468-3867 PST
Newline                                              Fax: +1-760-731-3000

Here is a simple way to strip the '-' 

Here is a concept solution.
I have not tested the code so there may be some syntax errors. 
It can work as I am doing stuff like this all the time. This example is 
using a check to only do the cut if there is more than one field. You may 
be able to just use step 3 from ctx and have what you want, but I am not 
sure if it will fall back gracefully if there is only 1 field. 

No AGI required.

exten => mycode,n,Gosub(ctx,1)

exten => ctx,1,Set(l_filedCNT=${FIELDQTY(CALLERID(num),-)})
exten => ctx,n,GotoIf($[${MATH(${l_filedCNT}>1)}=TRUE]?DoStrip:SkipStrip)
exten => ctx,n(doStrip),Set CALLERID(num)=${CUST(CALLERID(num), -, 1-)
exten => ctx,n(doSkip),NoOp(${CALLERID(num)})

Thanks
zktech


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----------------------------------------
 From: "Bryant Zimmerman" <BryantZ at zktech.com>
Sent: Thursday, July 07, 2011 4:14 PM
To: "Asterisk Users Mailing List - Non-Commercial Discussion" 
<asterisk-users at lists.digium.com>
Subject: Re: [asterisk-users] Stripping characters from ${CALLERID(num)} ?

Here is a simple way to strip the '-' 

Here is a concept solution.
I have not tested the code so there may be some syntax errors. 
It can work as I am doing stuff like this all the time. This example is 
using a check to only do the cut if there is more than one field. You may 
be able to just use step 3 from ctx and have what you want, but I am not 
sure if it will fall back gracefully if there is only 1 field. 

No AGI required.

exten => mycode,n,Gosub(ctx,1)

exten => ctx,1,Set(l_filedCNT=${FIELDQTY(CALLERID(num),-)})
exten => ctx,n,GotoIf($[${MATH(${l_filedCNT}>1)}=TRUE]?DoStrip:doSkip)
exten => ctx,n(doStrip),Set (CALLERID(num)=${CUT(CALLERID(num), -, 1-)})
exten => ctx,n(doSkip),NoOp(${CALLERID(num)})

Thanks
zktech

Made a correct in the above to reflect the skip state doSkip vs SkpStrip 
and made syntax correct to the Set/CUT line. There may still be a few more 
syntax issues in there.

zktech


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Use Filter command in dia-plan to get numeric only string,

Set(MYNEWCLI=${FILTER(0123456789,${CALLERID(number)})

Regards,

Faisal

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Tim Nelson
Sent: Thursday, July 07, 2011 9:44 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: [asterisk-users] Stripping characters from ${CALLERID(num)} ?

Greetings-

On occasion, I have calls coming into an Asterisk 1.2.x system where the
${CALLERID(num)} includes '-'. Ex:

123-456-7890

How can I strip the dashes from the number, leaving me with
'1234567890'?

I've tried the following which does not appear to be working:

Dialplan:
exten => _X.,n,Set(PROPERCID=System(echo ${CALLERID(num)} | sed s/\-//g))
exten => _X.,n,NoOp(Fixed proper CID is ${PROPERCID}

Console Output:
    -- Executing [1111111111 at cidmangletest:4]
Set("SIP/w.x.y.z-b4d55ce8",
"PROPERCID=System(echo 123-456-7890 | sed s/\-//g)")
    -- Executing [1111111111 at cidmangletest:5]
NoOp("SIP/w.x.y.z-b4d55ce8",
"Fixed proper CID is System(echo 123-456-7890 | sed s/-//g)")

Obviously, I'm trying to throw the CID through sed via System() to strip the
dashes. Can anyone explain how to accomplish this? Or even better yet, how
to strip the dashes directly in the dialplan without the use of System()?

Thanks!

--Tim

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