[Freeswitch-dev] [Freeswitch-users] Caller ID on Analog Lines

Muhammad Shahzad shaheryarkh at googlemail.com
Sat Dec 24 23:03:07 MSK 2011

I think India uses polarity reversal to indicate start of caller id on PRI
line, which i guess is not fully supported by FreeTDM yet. However, you can
try the following FreeTDM options, though i am not sure if they will work.

<param name="tonegroup" value="in" />
<param name="enable-callerid" value="true" />
<param name="answer-polarity-reverse" value="true" />

You may try to set last parameter to false and test again. Do let us know
if it works or not.

I am not much familiar with FreeTDM code, nor got the equipment to test, so
for those who have, please see below link regarding same problem in
Asterisk and how they solved it,


Hope this helps.

Thank you.

On Sat, Dec 24, 2011 at 6:57 PM, Ryan V <ryan at kaevee.com> wrote:

> Hi,
> Thanks to all the support we got in mailing lists and our telco, we put
> our freeswitch PBX online today.
> We are using Sangoma A101 and A200 Cards. We are successfully receiving
> the calls on our PRI and Analogue lines. But, we don't get caller-id on our
> analogue Lines. In India, Caller id comes in as DTMF tones and I could see
> the caller ID being detected correctly in debug.
> I have seen this issue raised earlier on the list and Moises Silva from
> Sangoma offered to fix it if given access to the server. Here is the link
> http://comments.gmane.org/gmane.comp.telephony.freeswitch.user/32340
> I wanted to know whether anyone has come up with a solution. I am open to
> give access to our server if Moises Silva or anyone else in Sangoma would
> like to have a look at it.
> Thanks,
> Ryan
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org

Muhammad Shahzad
CISCO Rich Media Communication Specialist (CRMCS)
CISCO Certified Network Associate (CCNA)
Cell: +92 334 422 40 88
MSN: shari_786pk at hotmail.com
Email: shaheryarkh at googlemail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-dev/attachments/20111225/6d12c3d7/attachment.html 

Join us at ClueCon 2011 Aug 9-11, 2011
More information about the FreeSWITCH-dev mailing list