Hi, I have the following problem. A messenger 5.1 connected to an LCS server 2005. A SIP phone connected to SER. When I call from messenger to SIP phone I have the voice only from SIP phone to messenger and not other way. There is not RTP packet send from messenger. If I declare messenger to as SER user, it's working fine. Has anybody an hand for me? Alexis --------------------------------- Découvrez le nouveau Yahoo! Mail : 250 Mo d'espace de stockage pour vos mails ! Créez votre Yahoo! Mail