If you've got a slow upstream link on your broadband connection and you are uploading stuff (ftp'ing data somewhere) then the person on the other end will notice a drop in voice quality (as an example my upstream is only 128Kbps and ftp'ing at the same time has a noticeable effect) Similiarly if you are downloading then this could also affect how the person on the other end of the line sounds to you but depends what download bandwidth you have.
Some of the questions you have may be answered at a site I created (still working on it) http://www.voipfaq.net/ If you have other questions let me know and i'll put them on the site with answers.
Cheers John
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If you've got a slow upstream link on your broadband connection and you are uploading stuff (ftp'ing data somewhere) then the person on the other end will notice a drop in voice quality (as an example my upstream is only 128Kbps and ftp'ing at the same time has a noticeable effect) Similiarly if you are downloading then this could also affect how the person on the other end of the line sounds to you but depends what download bandwidth you have.
Some of the questions you have may be answered at a site I created (still working on it) http://www.voipfaq.net/ If you have other questions let me know and i'll put them on the site with answers. Cheers John