Bad network quality

Copper Contributor

Hello All,


I have a few questions:


1. Is there any ways to tap into "Bad Network Quality" message in MS Teams meeting, like packets rate, bytes rate, what causes this problem in details or something related to these.

2. If the answer is "No", does anyone know how to detect "Bad Network Quality" using packet analyzer like "Wireshark"?

3. Does anyone know what UDP port 3479 is for? video, audio or something else?


Thank you so much, any suggestion is appreciated.

3 Replies
Microsoft Teams uses UDP ports 3478 through 3481 for media traffic, as well as TCP ports 80 and 443.

@Scott_Kang Look up a user from the call in Team admin, then look at Past Meetings under Meetings and calls. As you drill in you can get very detailed data about every 'stream' in the call. Streams represent audio, video and screen sharing, all the media.


As @Therese_Solimeno mentions 3479 is one of the media ports used by teams, and needs to be available and optimised, i.e. no packet inspection etc.

@Therese_Solimeno Thank you so much, do you know what specific kind of media uses port 3479?