[asterisk-users] IVR extension dialing error

[Zeeshan Zakaria]

I once setup a callback system for someone and we had these DTMF issues on
constant basis, and all the complains were from cell phone users. At that
time I found out that even my own cellphone would not DTMF correctly from
certain locations, including my home, but would work perfectly fine from my
work location. Probably times of the day matters too, but yes, calling from
cell phones does result in DTMF issues, and the reason is that it is just
the audio signals, which get distorted based on various factors like the
signal strength, cell tower transmission quality, transcodings, etc.

Zeeshan A Zakaria

--
www.ilovetovoip.com

On 2010-06-17 11:25 AM, "Alejandro Cabrera Obed" <aco1967 at gmail.com> wrote:

Danny, so you say it's a problem of the cell phone and not the
Astreisk or GSM Gateway ???

OK, in this case if I call from a fixed phone (not a cell phone) to
the IVR, the DTMF quality problem will not be present....this may be a
good test, isn't it ??? Or do you suggest another test I can implement
???

Thanks again

Alejandro

2010/6/17 Danny Nicholas <danny at debsinc.com>:

> The physical location of the phone (access to towers) can vastly affect
the
> quality of DTMF pass...
--
Alejandro Cabrera Obed
aco1967 at gmail.com
www.alejandrocabrera.com.ar


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