26 Oct
2009
26 Oct
'09
4:26 p.m.
On Montag, 26. Oktober 2009, Juha Heinanen wrote:
Hi Juha,
ah, i think we get this from a custom header extensions added from the UA
(FritzBox). It measures the time from the sended INVITE to the first received
provisional response or 200 OK. Not sure if you've this UA in your user set.
Another option that i got from the german version is that is possible to use
some external monitoring, i.e. just do some sampling.
Regards,
Henning
I've
searched a bit for this directive, and at least the (german/
austrian) source i found only mentioned a max. average call-setup time
of 3 seconds, and
95% of all connections should be setup in 4s. But this applies only to
national calls, otherwise it would be a bit harder to pass, if you look
at mobile calls, for example.
in the finnish version, operator is required to measure availability of
service (99.9% target), blocked calls percentage (1% target), and then
the one that was the topic of my mail, i.e., call setup time.
data for the first two can be produced from accounting and monitoring
data, but i don't know any means on how to measure call setup time,
i.e., invite out time stamp - invite in time stamp.