[Freeswitch-users] Detecting payphone

[Phil Kim]

Thank you everyone for help.

 

I will consult it with my provider.

 

 

Best regards,

 

Phil H. Kim

Software Engineer

VALIANT Workforce Solutions

phil.kim at valiant.com

www.valiant.com <http://www.valiant.com/> 

516-224-1908

________________________________

From: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Mike
Burlingame
Sent: Tuesday, August 14, 2012 5:38 PM
To: FreeSWITCH Users Help
Subject: Re: [Freeswitch-users] Detecting payphone

 

you would want your carrier to send you the isup-oli= field like below,
based on the isup-oil= you would make your routing decisions  

 

 From:
<sip:+1XXXXXXXXXX at YYY.YYY.YYY.YYY:5060;isup-oli=27>;tag=gK1e00826b

 

Ref http://www.nanpa.com/number_resource_info/ani_ii_assignments.html
for ANI-II Codes 27 and 70 are generally pay phone people also seem to
block 29 prison calls

 

 

 

On Aug 14, 2012, at 2:28 PM, Bob Coleman <bobc at devassert.com> wrote:





Hi Phil,
 
We run the same sort of service as you, and have faced the same issue.
 
In some countries they provide you with a list of all payphones, not
sure whether the US does, but we found that to be the easiest way to
record the surcharge.
 
Bob
 

________________________________

Date: Tue, 14 Aug 2012 17:19:02 -0400
From: phil.kim at valiant.com
To: freeswitch-users at lists.freeswitch.org
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 <http://www.valiant.com/> 

516-224-1908

 

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