For most personal or home networks, a firewall that is restricting network traffic will not be an issue and Video Chat, BBM Voice, and BBM Video will function as expected.
In most public and corporate networks, a firewall is put in place to add an additional level of security by permitting and denying network traffic between devices on the internal network and the Internet.
If the BlackBerry device is on a network that is behind a firewall, which is restricting network traffic and therefore interfering with the use of the above applications, see the below information.
Video Chat (PlayBook) communicates with the following addresses and therefore they need to be white-listed
sip.voip.blackberry.com:443,80/TCPturn.voip.blackberry.com:443,3478,5349,45535-65535/TCP,UDPstun.voip.blackberry.com:3478,3479/TCP,UDPBBM Voice and Video (BB10) communicates with the following addresses and therefore they need to be white-listed
bbmvideo.voip.blackberry.com:443,5061,80,5060/TCPturn.voip.blackberry.com: 443,3478,5349,45535-65535/TCP,UDPstun.voip.blackberry.com:3478,3479/TCP,UDPBBM Voice (BBOS) communicates with the following addresses and therefore they need to be white-listed
bbm.voip.blackberry.com: 443,5061,80,5060/TCPturn.voip.blackberry.com: 443,3478,5349,45535-65535/TCP,UDPstun.voip.blackberry.com: 3478,3479/TCP,UDPBBM-XP and BBM Voice (Android, Windows Phone, iOS) communicates with the following addresses and therefore they need to be white-listed
global.uci.blackberry.com:443,5061/TCPturn.voip.blackberry.com: 443,3478,5349,45535-65535/TCP,UDPstun.voip.blackberry.com:3478,3479/TCP,UDPBB Blend (All) communicates with the following addresses and therefore they need to be white-listed
p2p.voip.blackberry.com: 443,5061,80,5060/TCPturn.voip.blackberry.com: 443,3478,5349,45535-65535/TCP,UDPstun.voip.blackberry.com: 3478,3479/TCP,UDP


