Daniele Orlandi wrote:
That's great. Please note, I'm very much familiar with CVS, but much
less, if any, with other versioning systems, so I'd be greatful, if you
could make a tarball. I'm willing to compile the driver and test it.
And here goes a question:
I have a very consistent example of echo. Here is the connection described:
Voip phone (SNOM 190) --- local ethernet --- asterisk (with visdn) ---
ISDN BRI --- public telecom switch --- NT (ISDN BRI) --- ISDN phone
Please note, that (public telecom switch) means a local connection (in
between two subscribers, connected to the very same switch). So, in
fact, there is no high latency issue present. The equipment on the other
site is completely digital (ISDN BA) - no analog phones.
And still I'm consistently hearing a pretty much disturbing echo, with a
delay, I'd say around 75 - 125ms, perhaps even more. The echo is very
clear, not loud and consistent. Where is this echo coming from. I
studied all facts about the echo phenomena and I can say only, that this
echo is probably a sidetone, or this echo comes from the public switch.
Or do you have any other idea, why this echo occurs?
Thanks in advance for the answer
=b
Hello,
The now in-famous architectural change I've been working on in the past weeks
has been committed, a huge commit indeed:
bastard:~/isdn--devel # tla changes --diffs | wc
21352 60437 525633
Brave people who would like to test it may update via the arch's repository or
download tomorrow's snapshots.
I'm now working on integrating most of the missing features, echo cancellation
being the first one, of course. (FYI, the architectural change was mostly
needed to nicely support echo cancellation).
A tarball release will follow soon.
Bye,
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