AMR Implementation for Osmocom-BB

Michael Spacefalcon msokolov at ivan.Harhan.ORG
Sat Oct 26 18:05:42 UTC 2013

Akib Sayyed <akibsayyed at> wrote:

> Harald and Dieter Spaar

You should consider the possibility of accepting help from more than
just them...

> my question is does tsm30 support AMR operation

Do you have an actual physical TSM30 phone?  If you do, you must be
the luckiest person on Earth, as these phones must be worth way more
than their weight in gold.  If you don't have an actual TSM30, why
does it matter whether it supports AMR or not?

IOW, it seems to me that you are posing the question the wrong way:
rather than ask whether TSM30 supported AMR or not, you should be
asking how to get AMR support working on your current phone, which I
presume is one of the models supported by OsmocomBB, all of which use
a much newer Calypso+ABB+RF chipset than what the TSM30 had in it.

So, if you want to get help from those people who actually *are*
willing to help you (such as me), please answer the following two

1. Which phone are you using for your OsmocomBB/AMR experiments?

2. Please show us the console output you get from osmocon/layer1; I
want to see the "DSP API Version:" line in particular, which should be
printed twice.

My hypothesis is that getting AMR to work probably requires applying
at least one patch to the DSP code (others here have posted the same),
but before we can proceed further down that road, we need to know
which phone you are using and which DSP ROM version it has - hence my
two questions above; please answer them.


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