Special Voice Circuits

ATMC's special voice circuits is ideal for large businesses using 15 or more lines, offering more efficiency and better options than a traditional voice line.

ATMC's is available to help you with:

  • PRI
  • DID
  • T1 voice
  • ISDN
  • Centrex
  • ATM
  • Frame Relay
  • Digital Data
  • ISDN-PRI
  • Metro-Ethernet
  • T1 Options

Contact our Business Service Group at 910.755.1675 to find out
if a Special Voice Circuit is right for your business.

Useful Related Terminology

ATM
(Asynchronous Transfer Mode) ATM allocates bandwidth on demand, making it suitable for high-speed connection of voice, data and video services. ATM services will be available at access speeds of up to 622Mbps, with the backbone carrier networks operating at speeds currently as high as 2.5Gbps. ATM automatically adjusts the network capacity to meet the system needs and can handle data, voice, video and television signals. Used in broadband and optical fiber networks.
Centrex
(Central Exchange) Centrex is a business telephone service that includes over 19 calling features, such as intercom, call forwarding, call transfer, toll restrict, least cost routing and call hold. Great for connecting multiple locations. Reliable, 24hour service.
DID
(Direct Inward Dialing) Dial direct to your internal phones without the use of extensions.
Frame Relay
Frame relay consists of an efficient data transmission technique used to send digital information quickly and cheaply in a relay of frames to one or many destinations from one or many end-points. Network providers commonly implement frame relay for voice and data as an encapsulation technique, used between local area networks (LANs) over a wide area network (WAN). Each end-user gets a private line (or leased line) to a frame-relay node. The frame-relay network handles the transmission over a frequently-changing path transparent to all end-users. During peak use times, transmission rate will vary.
ISDN
(Integrated Services Digital Network) Has mostly been superseded by DSL. ISDN is a set of standards for a circuit-switched digital network that supports access to any type of service (e.g. voice, data, video) over a single, integrated local loop from the customers premises to the network edge.
    Two ISDN forms:
  • PRI (Primary Rate Interface)
    High Speed 1.5 Mbps
  • BRI (Basic Rate Interface)
    Low Speed 64 Kbps
Metro Ethernet
Metro Ethernet is a way to connect buildings on the Internet like desktops within the same building. It is primarily used for two purposes: Connectivity to the public internet and connectivity between geographically separate corporate sites. It is an application that extends the reach of corporate networks.
PRI
(Primary Rate Interface) ISDN version of a T-1 trunk from the customers premises to the edge of the service providers network. Supports 24 channels running @ 64Kbps
T1 Voice
(Trunk Level 1) A digital transmission link with a speed of 1.5Mbps in both directions.

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