Dear Doctor,
I installed a Voice over IP (VoIP) phone system for our office, initially set up to use Internet VoIP trunks. The reliability and sound quality of Internet phone calls was too poor for our management's taste, so I switched to Plain Old Telephone Service (POTS) analog lines. Alas, to my surprise, we still have significant sound-quality problems. The worst is that the beginning and ending of every spoken sentence seems to be clipped off. But we also hear a distinctive hiss that is... Read the rest of entry >>
Posted @ 05/01/2008 4:28 PM By Mel Beckman
• • •
Dear Doctor,
Our remote offices' Windows servers nightly perform file copy operations from our central System i server for database synchronization. Recently, however, the file copy operations have begun randomly failing. Some nights they all work, but other nights one or more copies fail, with Windows giving the inexplicable error "timeout occurred." We have plenty of bandwidth, and other non-Windows copies running in parallel prove that network outages aren't occurring. Packet captures at... Read the rest of entry >>
Posted @ 05/01/2008 4:27 PM By Mel Beckman
• • •