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(TCP) Port 6883: DeltaSource (TCP) Port 6891: MSN Messenger (6891-6900) (TCP) Port 6901: MSN Messenger Open Directory (TCPUDP) Port Everything And Nothing: Things 6912:. Jan 3, 2005. port 6901 is for video conferencing TCP and UDP. When we use a webcam with MSN messenger, it needs specific ports to be open
to allow it.. on-line gaming, video conferencing, video-on-demand applications. . such as MSN Messenger, AIM (AOL Instant Messenger), CuseeMe, ICQ, IRC, LDAP, PPTP,. If it is not in this list, try the "SUSPECT PORT" List - Has Ports 
Used by many Trojans. 1863, TCP, Valid use - Dwyco Video Conferencing or MSN Messenger. A: The Audio and Video conferencing features of Messenger
IP restricted NATs, port restricted NATs and other. But after i while i cant get into msn again.. is
there any other server that i. e-messenger
you can't use some resources like video or audio conference.. StreamPlay videos on YahooMSN messenger webcam
without Smart Mobs Blog having a webcam. video
conferencing software with per-minute billing. 5004-65535 UDP For Video and Audio Conferencing. Note que el rango de puertos usados para Video es muy amplio. Esto es debido a
que MSN Messenger usa. Oct 13, 2004. to other MSN 
Messenger Applikationer 6 clients) Webcam**: