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
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"Your Call Center in the Cloud"
From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@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
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