[Skypeenglish] LoudNoise&DisconnectOnAfricaCall

[Don and Cher Bosch]

Dear All,
 
Hello!  New to SKYPE and to the list.  Have only used SKYPE on two calls to
Cameroon, Africa.  For the first 45 minutes or so, sound quality is fine...
but then a loud ping starts at regular intervals.  The ping is then joined
by a sound a little like is a phone ringing in the background.  Both of
these become more pronounced and more frequent until the connection is lost.
Any ideas how to solve this?
 
Using SKYPE 3.8, XP Pro and latest JAWS9- if that matters.  Thanks for any
guidance.
 
Cher in Tennessee