Brian Code wrote:
Hi Radek,
Thanks for pointing that out. I had thought of that yesterday, and it
makes moving it to call init and call teardown an even better idea.
Hi Brian,
from my experience the place where the cancellation command is placed
does not matter much. What is important is that the "echo cancel" effect
takes place just for one call (doesnt matter if incomming or outgoint).
Then it must be sent to modem again so that next call is OK.
I have found this out by experiment. I had a button for cancel command
and from my experience it works this way.
So while implementing it does not matter when exactly is the command
sent (if it's 10 minutes before call or 1 second before call or after
last call hangup - and the command effect can live also thgrough phone
suspend), but it must be sent before callers are connected.
In Qtopia the command is sent after number is dialed or when phone
starts ringing - because it was easiest to implement it this way. It
could also work if the command was sent after modem init and then after
every call.
Btw this just my experience, but i am no expert in this area :)
Radek
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