Hi Jean-Marc & All, I would like to know wether the aec will converge faster if the "local talker" (seen on the input only) is talking? Tks, Aymeric MOIZARD / ANTISIP amsip - http://www.antisip.com osip2 - http://www.osip.org eXosip2 - http://savannah.nongnu.org/projects/exosip/