One of the advantages of VoIP is that voice and Internet services are delivered over the same local loop access circuit using the Internet Protocol (IP).

A T1 local access connection to the Internet that can be configured to carry either 24 digitized data channels or one aggregated concatenated data channel at a rate of 1.544 Megabits Per Second (Mbps) that is connected via a T1 Wan Interface Card (WIC), Channel Service Unit / Data Service Unit (CSU/DSU), and Internet router.

Voice over IP is a digital phone service that allow users to make calls across the public switched telephone network (PSTN) via the Internet. By using a high speed Internet connection and a VoIP phone or analog telephone adapter (ATA), a user receives the same type of phone service as plain old telephone service (POTS) plus many additional features. For example, find me / follow me allow a user to enter all of the phone numbers the user wants to ring when the user's VoIP phone number is called. If you are at home, at the office, or on your mobile phone, all of your phones can be rung in succession or at the same time using VoIP!

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.

The main limitation on DSL bandwidth speed is the distance from the customer premise to the local telephone company central office.

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.

Connect your business local area network (LAN) to the Internet using the same protocol that operates on your LAN: Ethernet. This increasingly popular Internet access solution makes it easy to connect all of the computers on your LAN at your company to the Internet with minimal configuration and cost.

POTS local loop speed is increased by up to 50 times when a DSL modem is attached at the customer premise and a Digital Subscriber Line Access Multiplexer (DSLAM) is connected to the local access loop at the local telephone company central office (CO).

You can compare MPLS to Frame Relay and ATM technologies.

Have you been frustrated trying to find telecommunications information on the Internet? Are descriptions of services unclear and so carrier specific that you do not trust the content? Telecom Links understands that there is a shortage of clearly-written information about the myriad of telecom services available today. Consequently, the Telecom Links mission is to be the most 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.