[Freeswitch-users] Detecting payphone

[Karol]

http://www.dialogic.com/webhelp/img1010/10.5.1/webhelp/oli_isdn_sip.htm

Just found that URL. Should help fine tune the codes you are looking for.
On Aug 14, 2012 6:13 PM, "Brian Fertig" <bfertig at telstarhosted.com> wrote:

> Yes that is fairly simple.  Its called OLI your upstream provider would
> pass these digits to you.   From there you can use channel variable to get
> the information.
>
>
>
> The OLI digits you are looking for are 23 and 27 I believe.
>
>
>
>
>
>
>
> ----
>
> Brian Fertig
>
> Director of IT
>
> Telstar Hosted Services
>
> Office: 877.483.5782
>
> Direct: 720.505.4607
>
> Cell: 434.420.5324
>
>
>
> [image: Description: Description: cid:image002.png at 01CBDCAF.07A013F0]
>
> *"Your Call Center in the Cloud"*
>
>
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Phil Kim
> *Sent:* Tuesday, August 14, 2012 5:19 PM
> *To:* FreeSWITCH Users Help
> *Subject:* [Freeswitch-users] Detecting payphone
>
>
>
> Hi all,
>
>
>
> Question might sounds odd but is there any way to detect if a call is
> coming from a ‘payphone’?
>
>
>
> We have an IVR system which people call in to check in/out of there work.
> Some calls are coming from a ‘payphone’.
>
>
>
> Problem is our carrier is charging us a huge ‘surcharge’ on those calls
> maid from ‘payphone’. We would like to block those calls but not sure how
> to detect them.
>
>
>
> Is there any flag on SIP messages?
>
>
>
> Thank you in advance.
>
>
>
> Best regards,
>
>
>
> Phil H. Kim
>
> Software Engineer
>
> *VALIANT *Workforce Solutions
>
> phil.kim at valiant.com
>
> www.valiant.com
>
> 516-224-1908
>
>
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