anyone from PRTC ?

I m looking for anyone from PRTC (Puerto Rico Telecom) being able to tell me
if there are knowns 'voice' routing problems from Puerto Rico to
Switzerland....

People there always get 'quick busy tone' when they try to call any number
in Switzerland....

Thanks,
Pascal

Aren't you supposed to get a [voice] echo on calls to CH? ("Little old lady, who?")
  --SG (irreverently)