Remotes via IP Putting it all together So let me summarize the
problems with Internet transmission of audio and the techniques
used to minimize them. First, there is network congestion, or
plain lack of bandwidth. That issue is tackled by minimizing the
necessary bandwidth, by using a lossy codec (or in the case of
APT, making use of ADPCM) and striking a correct balance between
bandwidth and packet size. Loss of packets is addressed to the
extent practicable by FEC. Packet jitter is addressed with a
jitter buffer. All that said, network security is yet another
issue. Your LAN is likely attached to a router that allows users
on your network to access the Internet. The connections made
through this router originate behind it - on the LAN side. The
router will allow access to the Internet, and in turn it expects
a response from the far end. But think about it: If you are in
the field, and trying to connect to an IP codec connected to
your network, and the router serves as a firewall, the
connection will be refu