VOIP Problems VOIP Problems Guest (visitor) (OP) 23 Sep 02 14:49 Can anyone point me in the direction of a site or tech articles that made a clear case against VOIP(i.e. caveats/risks/performance problems/reliability problems) and for PBX? Thanks RE: VOIP Problems techspecdotguru (MIS) 9 Dec 03 12:12 we have fujitsu 9600c PBX system with 16 remote sites. We got rid of our VoIP due to very bad echo problems when the network experianced any type of heavy bandwidth usage. went to FIPn and eliminated the echo problem.