[Freeswitch-users] Caller ID on Analog Lines

[Kerem Erciyes]

A trick I learned when dealing with Turkish Telekom and CLI problems etc..
on FXO lines.

When dealing with Analog lines try to find out maker and model of the
Central PBX you are connected to, then search about tha model on the
internet, this might give you better technical knowledge (at least what is
supported and what is not).

Good luck,
Kerem



On Tue, Dec 27, 2011 at 2:34 PM, sharad <sharad at coraltele.com> wrote:

> Hi,
>
> I think if you add some external module to capture the CLI, it wont help
> you
> because CLI is not detected by Freeeswitch.  saying this bacause I am from
> PBX line & have good experience of the said problem.
>
> I would like to suggest to check the CLI type. It may be in FSK mode.
> Eaelier I had used Grandstream FXO gateways to detect the FSK CLI. Can'nt
> say about DTMF. You can confirm with grandstream people.
>
> Having said this, another check point is - Check the CLI type whether it is
> before ring or between ring. This is important if your CLI is in dtmf. If
> it
> is so, you may have to give some time to detect the CLI. We call it CLIP
> timer.
>
> At last, someone mentioned the CLI relation with polarity reversal. i do
> not
> think there is any relation between CLI & polarity reversal.
>
> Feel free to discuss further.
>
> Regards
> Sharad
>
>
> ----- Original Message -----
> From: "guru singh" <grsingh750 at gmail.com>
> To: "FreeSWITCH Users Help" <freeswitch-users at lists.freeswitch.org>
> Sent: Tuesday, December 27, 2011 5:49 PM
> Subject: Re: [Freeswitch-users] Caller ID on Analog Lines
>
>
> Hi,
>
> I am the person whose thread you mentioned. I've also had somebody
> contact me off the list regarding this. What I did in my case was jut
> get some sort of dtmf converter. It costs Rs 200 and is Made in China.
> You plug in your FXO line in it and take another wire from it to your
> sangoma card. Caller ID is detected then. The only labeling it has on
> it is NetSonic. Somebody who contacted me tried to find it online but
> wasn't able to I think. I was referred to a shop here by the guy who I
> buy my Sangoma cards from.
>
>
> Muhammad Shahzad is right about polarity reversal, I confirmed this
> with the telco (Airtel). I do have hardware to test this or give
> access to somebody who wants to test a fix. But I just moved to a new
> place and dont have anything set up right now. It'll take a week
> before I have servers set up.
>
> Regards
> guru
>
> On Sun, Dec 25, 2011 at 7:42 AM, Ryan V <ryan at kaevee.com> wrote:
> > Caller ID on PRI line works fine. I have problem only with calls coming
> in
> > on FXO.
> >
> > Thanks,
> >
> > Venkatesh K
> >
> >
> > On Sun, Dec 25, 2011 at 1:33 AM, Muhammad Shahzad
> > <shaheryarkh at googlemail.com> wrote:
> >>
> >> 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,
> >>
> >> https://issues.asterisk.org/print_bug_page.php?bug_id=6683
> >>
> >> 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
> >>>
> >>>
> _________________________________________________________________________
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> >>>
> >>> 
> >>> 
> >>>
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> >>
> >>
> >>
> >> --
> >> 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
> >>
> >>
> _________________________________________________________________________
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> >> consulting at freeswitch.org
> >> http://www.freeswitchsolutions.com
> >>
> >> 
> >> 
> >>
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> >>
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> >>
> >
> >
> > _________________________________________________________________________
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> > consulting at freeswitch.org
> > http://www.freeswitchsolutions.com
> >
> > 
> > 
> >
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>
>
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
> 
> 
>
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-- 
Kerem Erciyes - Sistem Danismani
http://keremerciyes.com
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