Any Good Voice Quality Service ?

Is there a cellular service, with phone, that gives me voice quality that is
as good as voice quality of land lines? I use my cell phone for business,
and the low quality of the voice makes it very hard for me to understand a
conversation, especially when talking with people I do not know well.
Thanks.

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Talal Itani schrieb:
> Is there a cellular service, with phone, that gives me voice quality that is
> as good as voice quality of land lines? [...]

Voice quality is a very subjective matter which makes it very hard to
judge. Ask 10 different people about an network's voice quality and you
will get 10 different answers.

Generally speaking, voice quality in mobile networks is lower than on
landlines because the mobile digital channels transport less bits per
second than the channels used for landline phone calls. Usually you have
13kbps for mobiles and 56kbps or 64kbps on land lines. Therefore, mobile
networks need to use data reduction which always leads to a loss of
voice quality. Think of low bitrate MP3 files versus an audio CD here.

That beeing said, there have been massive improvements to voice
compression technology over the last 10 years. In the GSM world, you may
find as much as five different voice codecs offering different levels of
voice quality. Not all devices support all of these codecs and not every
tower of every operator supports every codec.

The voice quality you get depends on your phone, on your operator and on
where you are. Therefore, you cannot rely on anybody's judgement here,
you must try several phones and pick the one that you like best.

Andreas

"Talal Itani" <[email protected]> writes:

> Is there a cellular service, with phone, that gives me voice quality that is
> as good as voice quality of land lines? I use my cell phone for business,
> and the low quality of the voice makes it very hard for me to understand a
> conversation, especially when talking with people I do not know
> well.


Unfortunately, my experience says "no."

AMPS (the old Analog stuff) was the best voice quality wireless had to
offer in good signal areas, but cell phone operators learned that
"hey, with the same spectrum we can cram a lot more calls in if we got
to digital and multiplex the hell out of the channel at the expense of
call quality" and here we are.


I did an informal, non rigorous test of voice quality among providers
years ago and found Verizon with CDMA and close to a tower seemed to
sound best. The annoying caveat there is that CDMA can go do hell when
the constrict a cell tower's rf diameter during busy times and
suddenly call quality can get lousy if a nearby tower is busy but
doesn't want to talk to you anymore. GSM can be pretty good.

Call quality seems to vary greatly from phone to phone too.

At any rate, if you need landline inteligibility and clarity, sadly,
you won't find it in wireless these days. Least not that I've found.

Digital home phone service I've also found has its quality and
reliability issues too. Hard to compete with POTS on call quality I'm
afraid.

--
Todd H.
http://toddh.net/

>
> Voice quality is a very subjective matter which makes it very hard to
> judge. Ask 10 different people about an network's voice quality and you
> will get 10 different answers.
>
> Generally speaking, voice quality in mobile networks is lower than on
> landlines because the mobile digital channels transport less bits per
> second than the channels used for landline phone calls. Usually you have
> 13kbps for mobiles and 56kbps or 64kbps on land lines. Therefore, mobile
> networks need to use data reduction which always leads to a loss of voice
> quality. Think of low bitrate MP3 files versus an audio CD here.
>
> That beeing said, there have been massive improvements to voice
> compression technology over the last 10 years. In the GSM world, you may
> find as much as five different voice codecs offering different levels of
> voice quality. Not all devices support all of these codecs and not every
> tower of every operator supports every codec.
>
> The voice quality you get depends on your phone, on your operator and on
> where you are. Therefore, you cannot rely on anybody's judgement here, you
> must try several phones and pick the one that you like best.
>

Thank you very much. My phone/service sounds terrible. I have T-Mobile,
with Motorola RAZR. Many time, I have to tell the customer: "Please let me
call you back", just because I can barely understand, especially if the
person has a accent, which is the case is most of my calls.

"Talal Itani" <[email protected]> writes:

> Thank you very much. My phone/service sounds terrible. I have T-Mobile,
> with Motorola RAZR. Many time, I have to tell the customer: "Please let me
> call you back", just because I can barely understand, especially if the
> person has a accent, which is the case is most of my calls.

I had an original Razr v3c (Cingular, but also GSM like t-mobile)
and it sounded horrible.

My new Krazr K1 is much much better in the voice quality dept, fwiw.

Best Regards,
--
Todd H.
http://toddh.net/