D-Link DVC-1000 Product Manual - Page 58

Glossary of Terms

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Glossary of Terms Bandwidth: A measure of the rate at which data can be sent and received through a network. This value is usually given in bits per second (bps) or mega bits per second (kbps). CIF (Common Intermediate Format): An intermediate video format. When. DVC-1000 video is transmitted over a network, the sizes will be CIF, QCIF, or SQCIF. The VideoPhone will default to CIF. CIF resolution is 352 x 288. DHCP (Dynamic Host Configuration Protocol): A protocol that network devices use to obtain an IP address, subnet mask, gateway and DNS addresses automatically. A DHCP server can be a router, ISP server, or PC running Internet connection sharing. See Static IP address. Directory Service: A service that allows users to make videoconferencing calls with telephone numbers. It does this by correlating telephone numbers to actual public IP addresses. DNS (Domain Name System): A system used to translate computer names into IP addresses. For example, a DNS server would translate. www.dlink.com into 64.7.210.132. DSL (Digital Subscribers Line): A technology that delivers digital information at a high speed through a user's telephone line. The most common DSL is ADSL (Asymmetrical Digital Subscribers Line) where the download speed is usually much higher than the upload speed. Ethernet: The port on the back of the DVC-1000 VideoPhone that is used to send and receive data over a network. H.323: Standard defining videoconferencing over the Internet. Home Gateway: A term commonly interchanged with router. Also called a residential gateway. 58

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58
Glossary of Terms
Bandwidth:
A measure of the rate at which data can be sent and received
through a network. This value is usually given in bits per second (bps)
or mega bits per second (kbps).
CIF (Common Intermediate Format):
An intermediate video format. When
DVC-1000 video is transmitted over a network, the sizes will be CIF,
QCIF, or SQCIF.The VideoPhone will default to CIF. CIF resolution is
352 x 288.
DHCP (Dynamic Host Configuration Protocol):
A protocol that network
devices use to obtain an IP address, subnet mask, gateway and DNS
addresses automatically. A DHCP server can be a router, ISP server, or
PC running Internet connection sharing. See Static IP address.
Directory Service:
A service that allows users to make videoconferencing calls
with telephone numbers. It does this by correlating telephone numbers
to actual public IP addresses.
DNS (Domain Name System):
A system used to translate computer names
into IP addresses. For example, a DNS server would translate
www.dlink.com
into ±4.².210.132.
DSL (Digital Subscribers Line):
A technology that delivers digital information
at a high speed through a user’s telephone line. The most common DSL
is ADSL (Asymmetrical Digital Subscribers Line) where the download
speed is usually much higher than the upload speed.
Ethernet:
The port on the back of the DVC-1000 VideoPhone that is used to
send and receive data over a network.
H.323:
Standard defining videoconferencing over the Internet.
Home Gateway:
A term commonly interchanged with router. Also called a
residential gateway.