[Asterisk-Users] Will Echo problems EVER be solved, I'm scared

[Soner Tari]

>> > Is it practical to 'assume' that in your case mentioned above that
>> > #1 is not going to occur again (since I assume when you say 'line'
>> > you are referring to an outside pstn line), and, #2 is in a mode
>> > of fine-tuning the training when in fact you'd really like it to
>> > start the coarse-training from scratch?
>>
>> Thanks Rich for the comments. Obviously you got my point. And I was 
>> hoping
>> that it is possible somehow to do #1 (coarse-training from scratch) after 
>> a
>> PSTN line is transfered to another phone or something very important 
>> changes
>> about a call. But considering how complicated a situation this might be
>> (there is music on hold to say the least, or perhaps the transferee may
>> reject the call and the call returns to the operator [in which case you
>> wouldn't want #1], etc.) I guess this is not a simple task. Anyway, I'll
>> keep on watching for a solution.
>
> The echo canceler preload happens shortly after the analog line is
> seized. Since a call transfer does not open/close the pstn line again,
> its not going to preload again. However, it should not have to anyway
> since there hasn't been any electrical changes there.
>
> What type of phones are you using internal when you're transferring a
> call?

The internal phones involved were both analog phones, i.e. Zap channels. 
This problem happened once in the last 2 days (with KB1), so I'm not too 
negative.
Soner