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

An Internet T1 (sometimes spelled T-1) is a high speed telecommunication line that can carry 24 digitalized voice channels, or it can carry data at a rate of 1.544 megabits per second.

Hosted Voice over Internet Protocol (VoIP) is a voice and data technology that supports several telecommunications protocols, such as Session Initiation Protocol (SIP) and Internet Protocol (IP), that that makes it easy for people to use the Internet to make telephone calls while saving money on premise hardware.

Representative Telecommunication Services: We offer VoIP PBX, IP PBX, US termination, SIP gateway, VoIP gateway, data and Internet T1 (DS1) lines (1.5 Mbps bi-directional transfer upload and download rate), fractional T1 (DS1) circuits (256 Kbps to 1,024 Kbps), bonded (load balanced) T-1 (DS1) lines (3 Mbps to 12 Mbps), T3 (DS3) lines (6 Mbps to 45 Mbps), point-to-point private lines, Virtual Private Networks (VPNs), MPLS (Multi Protocol Label Switching), wide area network (WAN) configurations, inbound and outbound call center services, IP PBX and Hosted VoIP solutions, dynamic and channelized integrated T1 (DS1) lines, Primary Rate ISDN (PRI) service, etc.

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

As business networks face increasing numbers of applications with low latency and high bandwidth demands, MPLS allows network administrators to specify which applications should be prioritizes above others so that data flows across the network is an organized fashion that reflects the relative business importance of various type of data.

High Speed Internet Access via Ethernet local access connects end user Ethernet local area networks (LANs) to the Internet over a metropolitan wide area networks (WANs) at speeds ranging from 1 megabit per second (Mbps) up to 1 gigabit per second (Gbps). Internet access via Ethernet is an "always on", flat-rate service that offers faster, more cost effective Internet access than is available through traditional telecommunication access technologies such as T1 / T3 or E1 / E3 connections.

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 Microwave, 3G, and Satellite Wireless Internet service connects subscribers who are in remote locations or unique locations where DSL or other types of Internet access is unavailable. All you need to connect to wireless Internet is an unobstructed view of the provider Internet transmitter - receiver or satellite.

If you are looking for clear, concise definitions of telecommunication terms and explanations of telecom services, especially how they are used and how they work, TelecomLInks is a great place to start.

MPLS can be used to facilitate layer 3 IP VPNs, layer 2 VPNs, Quality of Service (QoS), Class of Service (CoS) and to guarantee Service Level Agreements.