Help with VoIP and IP Telephony specifications:
Network Equipment Type
Back to Top
|
| ||
| Equipment Type | |||
| Your choices are... | |||
| Bridge | Network bridges interconnect local or remote networks. They centralize network administration by forming a single logical network. Bridges operate at the physical and link layers of the open systems interconnection (OSI) reference model. | ||
| Extender / Repeater | Network repeaters are 802.3 network cable segments. Regeneration and retiming ensure that the signal is transmitted clearly through all segments. | ||
| Firewall | Network firewalls are a system or group of systems that, for purposes of security, enforce an access control policy between an organization's network and the Internet. | ||
| Gateway | Network gateways are devices that can interconnect networks with different, incompatible communications protocols. They perform a Layer-7 protocol-conversion to translate one set of protocols into another (for example, from TCP/IP to SNA or from TCP/IP to X.25). Gateways operate at OSI layers up through the session layer. | ||
| Hub | Network hubs provide a central location for attaching wires to workstations. They can be passive or active. Passive hubs do not amplify signals. Active hubs are used like repeaters to extend the cable that connects to a workstation. | ||
| IP Phone | IP phones use telephony technology to transmit calls over an IP network. IP phones can transmit audio as well as video over the network, allowing organizations to communicate easily. | ||
| Multiplexer | Network multiplexers are telecommunications devices that funnel multiple signals onto a single channel. | ||
| Router | Network routers are protocol-dependent devices that connect sub-networks. Although they can separate a very large network into smaller sub-networks, routers introduce longer delays and typically have much lower throughput rates than network bridges. Routers operate at the Layer 3 network layer. | ||
| Switch | Network switches connect network devices to host computers. They allow a large number of devices to share a limited number of ports. Network switches are used both in computer networks and in telecommunications networks. Ethernet LAN switches use variable-sized packets or frames. ATM switches use small, fixed-sized cells for telecom applications. | ||
| Transceiver | Network transceivers (transmitters-receivers) are devices that both transmit and receive analog or digital signals. | ||
| Other | Other unlisted, specialized, or proprietary network equipment types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
Form Factor
Back to Top
|
|
| ||
| Your choices are... | |||
| Board | The network equipment is a board or card form. | ||
| Ceiling / Wall Mount | The equipment can be ceiling or wall mounted. | ||
| Chassis Mount | The equipment is mounted in a chassis. | ||
| Desktop / Standalone | The equipment is enclosed and can be placed on a desktop or shelf. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
Ports / Interfaces
Back to Top
|
|
| ||
| Number of Ports | The total number of networking ports which the network equipment provides. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
Performance
Back to Top
|
|
| ||
| Data Rate | The maximum data transfer speed. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
| Users | The number of users for which network equipment is designed. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
Features
Back to Top
|
|
| ||
| Features | |||
| Your choices are... | |||
| Integrated Firewall | The network equipment has an integrated firewall for security. | ||
| Layer 3 Capable | The network equipment is layer 3 capable, or has IP addressing, for smarter routing. | ||
| Rack Mount | The network equipment can be mounted in a rack. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
