1.MSN Messenger will not work with voice & video, what is wrong?
MSN Messenger's voice & video functions will not work due to the larger number of open incoming ports it requires (by large we mean 98.4% of the 65536 available ports!). We are not trying to stop the use of MSN, it's just very poorly designed to work behind a firewall. There is no way MSN Messenger can be used for these functions on ResNet. We will test future releases of MSN Messenger to see if the situation changes. However, as an alternative Yahoo Messenger is also free, has been tested and is fully functional for messaging, video, and audio. Please use Yahoo Messenger for such features. We are also looking into other voice and video applications that are firewall friendly and will let you know after successful testing.
http://www.bris.ac.uk/is/computing/advice/...irewallfaq.html
2.can anyone help me to configure msn messenger 6.2 to use webcam, voice service and gaming zone?i have a list of used ports from msn messenger but i don't work out to make right rules to use those services . thanks..
389 : TCP MSN NetMeeting
522 : TCP MSN NetMeeting
1024 : UDP MSN NetMeeting (ports 1024 - 65535)
1503 : TCP MSN NetMeeting Whitebord and Application Sharing
1720 : TCP MSN NetMeeting
1731 : TCP MSN NetMeeting
1838 : TCP MSN Messenger (Gamevoice)
1863 : TCP/UDP MSN Messenger primary (incoming)
2300 : TCP/UDP MSN Gaming Zone DX (incoming) - ports 2300-2400
2880 : TCP MSN Gaming Zone (ports 2880-29000).
3389 : TCP MSN/Microsoft RDP (Remote Desktop Protocol) for Remote assistance
5004 : UDP MSN Messenger, ports 5004-65535. Used for AUDIO and VIDEO.
5004 : UDP MSN messenger (dynamically uses a port in this range 5004 – 65535 - requires uPNP in your NAT router and/or firewall). Used for AUDIO and VIDEO.
5190 : UDP MSN Messenger (incoming)
6667 : TCP MSN Gaming Zone (incoming)
6891 : TCP MSN Messenger Filetransfer (incoming) - ports 6891 - 6900, one port per file transfer
6901 : TCP/UDP MSN Messenger Voice Telephony (incoming)
28800 : TCP MSN Gaming Zone (incoming) - ports 28800 to 29000
47624 : TCP MSN Gaming Zo ne DX (incoming)
3. MSN Messenger Technology
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Msn Messenger 6.2 provides audio as well as video transmission over network (voice chat). It uses SIP (Session Initiation Protocol) for its audio conversation. The Session Initiation Protocol (SIP) is a signalling protocol used for establishing sessions in an IP network. A session could be a simple two-way telephone call or it could be a collaborative multi-media conference session like in MSN messenger.
It uses SIP for Signalling.
RTCP packets for Control Information.
RTP packets for Audio Data Transmission.
Msn is using Client/Server Deployment of Voice over IP.
Service TCP UDP Notes
Windows Messenger - voice (computer to phone) 2001-2120, 6801, 6901 from Q324214. NOTE: 6801 is Net2Phone.
MSN Messenger - file transfers 6891-6900 from Q278887. Allows up to 10 simultaneous transfers.
MSN Messenger - voice communications (computer to computer) 6901 6901 from Q278887
For Windows Messenger in a non-UPnP environment, unfortunately Microsoft requires dynamic UDP ports across a very wide range. This is a tremendous security risk. Try to establish a UPnP environment if possible. Nevertheless, here is what they say To support [audio and video] in both directions through the firewall, all UDP ports between 5004 and 65535 must be opened to allow signaling (SIP) and media streams (RTP) to traverse the firewall.
Also note: I don't know how much information for WINDOWS Messenger applies to MSN Messenger and vice versa. I also don't know how much information for MSN Messenger Windows version applies to MSN Messenger Mac version. And last but not least, there are multiple different versions of Messenger, which may differ in various ways.
http://www.chebucto.ns.ca/~rakerman/port-table.html
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4.Yahoo! Messenger Technology
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Yahoo Messenger is a client that provides the facility of chatting in text format as well as Audio format i.e. Voice chat. It also facilitates users to have Video transmission over Internet Protocol. Here we are considering the voice chat over yahoo messenger. Yahoo is using slight variation of H.323 protocol for Voice over IP technique. Yahoo is having Central Servers for Voice Chatting. These Servers send VOIP packets using both TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) protocols. TCP packets that are sent to a user's computer originate from source ports 5000 and 5001. UDP packets that are sent to a user's computer originate from source port 5000 and are addressed to a port in the range 5000-5010 on the user's computer.
Yahoo uses slight deviation of H.323 standard like:
RTCP(TCP packets) for Control packets.
RTP Packets for Audio Data transmission
Yahoo Voice Servers:
v1.vc.scd.yahoo.com (66.218.70.32)
v2.vc.scd.yahoo.com (66.218.70.33)
v3.vc.scd.yahoo.com (66.218.70.34)
v4.vc.scd.yahoo.com (66.218.70.35)
v5.vc.scd.yahoo.com (66.218.70.36)
v6.vc.scd.yahoo.com (66.218.70.37)
v7.vc.scd.yahoo.com (66.218.70.38)
v8.vc.scd.yahoo.com (66.218.70.39)
v9.vc.scd.yahoo.com (66.218.70.40)
v10.vc.scd.yahoo.com (66.218.70.41)
v11.vc.scd.yahoo.com (66.218.70.42)
v13.vc.sc5.yahoo.com (66.218.70.43)
vc1.vip.scd.yahoo.com (66.218.70.44)
Hunter