Comrex BRIC-Link II, Product Manual

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Enter a unique Username and a secure Password for the new User (this will be the user’s login creden als).
Then enter the User’s Full Name and a contact Email address . A Phone number is op onal, but can assist in
communica on among Switchboard users. Click “Add New User” when fi nished and the User will be displayed on
the Users Tab . Any User given login creden als can access the Switchboard account and perform any the ac ons
described previously.
SWITCHBOARD THEORY AND CONCEPTS
This sec Ɵ on contains more detailed technical and conceptual informa Ɵ on about how Switchboard
works, rather than how it is used. This can be helpful to understand what goes on behind the
scenes each
Ɵ me a codec connects via Switchboard.
Switchboard o ff ers a dis nct advantage facilita ng connec ons because it’s not always simple to connect two
devices, which are essen ally “peers”, over the Internet. There are two major reasons for this. First, ini a ng
communica on to a device over the Internet requires knowing its IP address. This is the number that gets applied
to the des na on
fi eld of an IP packet, so internet routers can determine how best to send it along its way. Second,
tra ffi c can o en be blocked or lost along the way even if the IP address is known.
Every device that connects directly to the public Internet must have an IP address. However, when web browsing or
sending email, this informa on is usually hidden from the user. In the tradi onal client/server scenario, such as web
browsing, a Uniform Resource Locator (URL) is used to represent the IP address of the web page, which is decoded
by a Domain Name System (DNS) server. Once a computer requests a web page by URL from a web server, the
web server can automa cally derive the reply address from the request and respond to it. So the tradi onal four
segment decimal address (e.g., 70.22.155.130) is completely obscured to the user.
Even if you know your IP address, it’s quite possible that address will change over me. This is because the vast
majority of internet users establish their addresses via the Dynamic Host Con
fi gura on Protocol (DHCP), whereby
a server maintained by the Internet Service Provider (ISP) will deliver one of their available addresses to the client