[Freeswitch-users] Channel variables for npdi and rn on LRN dipped calls.

[Victor Chukalovskiy]

Ken,

Thank you very much for feedback. I'll then follow your regex example to 
parse it.

-Victor

On 13-01-06 12:19 PM, Ken Rice wrote:
> Re: [Freeswitch-users] Channel variables for npdi and rn on LRN dipped 
> calls. You have to parse out the NDPI and RN values...
>
> Just use a regex like 
> ^(?:+1|1)?([2-9]\d{2}[2-9]\d{6});ndpi=(*.);rn=([2-9]\d{2}[2-9]\d{6})$
> That will get dialed digits in $1, ndpi value in $2, then LRN in $3,
>
> I would warn against trusting the LRN you are sent if you do not 
> explicitly trust the customer sending you said LRN... Its not like its 
> hard to spoof the LRN replacnig the LRN from a high cost ratecenter 
> with a low cost ratecenter
>
> K
>
> On 1/6/13 8:12 AM, "Cal Leeming [Simplicity Media Ltd]" 
> <cal.leeming at simplicitymedialtd.co.uk> wrote:
>
>     What the..
>
>     I thought "Caller-Destination-Number" was always the cleaned
>     dialed number (i.e. 5551234567) - is this not the case?
>
>     Cal
>
>     On Fri, Jan 4, 2013 at 5:38 PM, Victor Chukalovskiy
>     <victor.chukalovskiy at gmail.com> wrote:
>
>         Hello and Happy New year!
>
>         A SIP call comes in that was previously dipped. I'd like to be
>         able to
>         have "rn" and "npdi" available as channel variables that I can
>         use in
>         regex expressions. Is there a way to configure FreeSWITCH to
>         put "rn"
>         and "npdi" into separate channel variable?
>
>         So far, info application shows me the following channel
>         variables that
>         contain LRN:
>
>         Caller-Destination-Number: [5551234567;npdi=yes;rn=5555550001]
>         variable_sip_req_user: [5551234567;npdi=yes;rn=5555550001]
>         variable_sip_req_uri:
>         [5551234567;npdi=yes;rn=5555550001 at 1.2.3.4:5060
>         <http://5555550001@1.2.3.4:5060> ]
>
>         I can probably dissect those and put "rn" and "npdi" into separate
>         variables. But this means extra steps in dial-plan. In case
>         there is a
>         built-in way to accomplish the same task, it would be great!
>
>         Could you please let me know.
>
>         Thank you,
>         Victor
>
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> -- 
> Ken
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