eu.voxalot.com [194.110.67.221], has it problems?

[casch]

Hi,

just made some calls with no problems but now - arrrrgh (/&%§$"§"$%(/)
No one can hear me and what I hear is slowed down by many, many little interruptions, like machine gun talks to me

Even when I call *600, I can hear the first line without problems:
"You're about to enter an echo test"
But what follows:
In this mode ...
sounds like a machine gun is speaking to me.
If I wait (long) until I can speak to that echo test,
I don't hear anything until after serveral seconds the first echo
comes back?

While ping is ok:
Ping for eu.voxalot.com [194.110.67.221] mit 32 Bytes Daten:
Antwort von 194.110.67.221: Bytes=32 Zeit=42ms TTL=51
Antwort von 194.110.67.221: Bytes=32 Zeit=43ms TTL=51
Antwort von 194.110.67.221: Bytes=32 Zeit=43ms TTL=51
Antwort von 194.110.67.221: Bytes=32 Zeit=44ms TTL=51

Ping-Statistik für 194.110.67.221:
packets: send = 4, received = 4, lost = 0
(0% lost),
Ca. in Millisec.:
Minimum = 42ms, Maximum = 44ms, Mittelwert = 43ms

And I just made a speed-test of my LAN-connection
download 7881 kbps and upload 725 kbps

Anyone with an idea?
Thanks in advance,
Carl