Archived from groups: comp.dcom.voice-over-ip (
More info?)
In article <weydnZ2dnZ08j_7WnZ2dndtImN6dnZ2dRVn-0J2dnZ0@comcast.com> Rick
Merrill <rick0.merrill@NOSPAMgmail.com> writes:
> When I'm on hold the "musak" keeps the line busy and
> surfing the internet bogs down. Am I right that it
> is the Musak or is it the phone call all by itself?
It's the hold music.
VOIP bandwidth is dynamic. When there is no voice (or sound) passing over
the "connection" then the bandwidth that had been carrying the voice
(Muzak) information is available to carry other information (i.e., data).
In systems designed to give voice traffic priority (aka QOS meaning
Quality Of Service such as 802.1p/q) enough VOIP traffic can bring
"surfing" literally to a standstill. However, I know of no such VOIP
system that supports QOS across the public Internet, so worst case the
VOIP traffic will simply be competing for the same pool of bandwidth that
your surfing is competing for. That of course means than not only can
"Muzak" (or an actual conversation) slow down surfing, but surfing can
also destroy the quality of the call, making it unintelligible gibberish.