VoIP phone calls are usually delivered over a carefully-managed network often running Quality of Service (QoS) and the Session Initiation Protocol (SIP).

In a T1, each of the twenty-four 64 Kbps channels can connect to the Internet individually or the Internet T1 can be configured to aggregate all of the 24 channels into one large 1.544 Mbps concatenated channel.

VoIP can provide big company telephone features on a small company budget. You are not merely trading one system for another: VoIP represents the next generation of telephony and messaging: Control calls anytime from anywhere, view incoming calls, view missed calls, view calls you have placed, view your voice messages like emails (find the voice message you want to listen to first – listen to it through your phone, remotely, or on any sound-enabled computer, forward it to another user or an email box), click to call people in your contact directory, enjoy four-digit dialing to all of your locations, etc.

The ADSL downstream receiving rate from the Internet usually varies from 1.5 to 9Mbps while the upstream sending rate usually varies from 16 to 640 Kbps.

Ethernet can be used to connect twisted copper pair networks and to connect fiber optic cable networks.

Multiprotocol Label Switching (MPLS) can be used to create intelligent networks that support advanced data packet management over a single network while saving money. MPLS can be integrated seamlessly over any existing infrastructure such as IP, Frame Relay, ATM, or Ethernet and end users with different types of local access circuits may be joined together on the same network without changing their current access protocols.

A major feature of Internet over Ethernet is the ease in which you can upgrade from 1 Mbps to 1 Gbps. Simply call your Internet Service Provider (ISP) and ask for an upgrade and it can be provisioned almost in real time. This service is the future of Internet access for the foreseable future.

Digital Subscriber Line Service (DSL) has become a very popular Internet access service. This is because DSL uses the existing copper pairs that already exist between most customer premise offices and the local phone company central office (CO). A DSL connection is set up between a DSL modem at the customer premise and a DSL access multiplexer, or DSLAM, at the phone company central office. Both voice and data can be run across the same DSL connection by using a filter to separate voice traffic from Internet traffic.

High-speed microsave and satellite Internet connections for business can replace or back up traditional terrestrial landlines such as Internet T1s and Digital Subscriber Line (DSL) service. With wireless Internet service in place as your primary or backup Internet connection, you can always count on low-latency connection to the Internet that means you will have an "always up", "never down", "zero outage" service that eliminates wasted time and increases productivity.

Telecom Links mission is to be a comprehensive source of telecommunications information on the World Wide Web.

MPLS can be used to create highly-scalable IP networks with layer 2 level security as well as easy network configuration, management, and provisioning.