I've noticed that with GSM calls in general there is sometimes an echo.  It can be very pronouced or barely noticable.  It may be hw or sw, but it may not have anything to do with either caller's phone.
If it doesn't happen consistently and is not reproducable, it's likely the network.  IMHO.
Matt
-----Original Message-----

From: community-bounces@lists.openmoko.org [mailto:community-bounces@lists.openmoko.org] On Behalf Of liwei

Sent: Monday, May 19, 2008 9:22 PM

To: List for Openmoko community discussion

Subject: Re: ASU software - pre-pre-release impressions
On 一, 2008-05-19 at 16:27 -0700, Mike Montour wrote:

quoted text
> Ian Darwin wrote:

>

> Thanks for posting your review. Perhaps you (or another Freerunner user)

> can answer a few more questions:

>

> How good is the audio quality when having a GSM voice conversation with

> another person? Can the other caller hear you clearly without being

> distracted by an echo of their own voice (as happens on at least some

> GTA01s, mine included)? Is the Neo's speaker volume loud enough for you

> to hear the other caller in the presence of noise (e.g. outside on a

> sidewalk)?

>

>

>

i agree with Darwin,my phone has above problem.The other caller hear my

voic is very small.i must speak very loudly.i want to know this problem

be caused by hareware or by software?

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