Specialty Circuits

American Telesis’ Digital Data Service (DDS) is a DS0 level (64Kbps) dedicated end-to-end digital private line service designed to support critical data applications. Provided with digital local access, DDS is designed for full-time synchronous transmission at 56Kbps. 

Applications 

  • 56Kbps synchronous digital data transmission 
  • High-speed (Group IV) digital facsimile transmission 
  • 56Kbps compressed video teleconferencing 
  • Digitized voice transmission 

Features 

  • Segregated network architecture with Extended Super-frame (ESF) 
  • DCS-to-DCS systems 
  • Specialized DDS technical support team and maintenance staff 
  • End-to-end service coordinating and billing 
  • Exceptional Inter-exchange Channel (IXC) performance standards: 
    • 99.95% Error-Free Seconds (EFS) – measured over 24 consecutive hours* 
    • 99.85% Availability – measured over 12 consecutive months* 
    • Mean Time to Repair (MTTR) – objective of 4 hours 
    • * Varies based on circuit length 
    • Compatible with Bellcore and other industry standards for 56Kbps DDS private line service 

Service Options 

  • Secondary Channel capability 
  • Access Reconfiguration capability 
  • DS1 access capability 
  • Diverse Routing capability 

American Telesis’ DS0 Service is a 64Kbps dedicated digital inter-exchange channel service. Using analog voice frequency (VF) local access, DS0 Service will support the transmission of analog voice and/or data within the frequency range of 300 – 3000 Hz. DS-0 Service with VF access combines the quality and reliability of digital long haul transmission with the versatility of an analog private line. 

Applications 

  • Voice tie lines or inter-machine trunks 
  • Analog data or facsimile lines 
  • Off-premises Extensions (OPX) 
  • Automatic Ring Down circuits (ARD) 
  • Foreign Exchange (FX) 
  • Feature Group (FG) lines 

Features 

  • End-to-end service coordination and billing 
  • Superior Inter-exchange Channel (IXC) performance standards: 
  • 99.95% Error-Free Seconds (EFS) – measured over 24 consecutive hours*  
  • 99.85% Availability – measured over 12 consecutive months*  
  • Mean Time to Repair (MTTR) – objective of 4 hours 
  • * Varies based on circuit length 
  • Compatible with Bellcore and other industry standards for DS-0 digital private line service 

Service Options 

  • Multi-point and/or Multi-drop bridging 
  • Signaling and conditioning 
  • Echo cancellation 
  • DS1 access capability 

Foreign Exchange (FX) service provides local telephone service from a central office that is outside the subscriber’s exchange area. A user picks up the phone in one city and receives a dial tone in another (foreign) city. This service gives people located in the foreign city the ability to place a local call to the user. 

This service is not specific to any vertical market. Practically all types of businesses use Foreign Exchange service, especially large corporations with telecommuters and the airlines. 

An Off-Premises Extension (OPX) is a dedicated circuit connecting a distant location to a main PBX to provide the same phone system features available at the main location. Answering services, small businesses and people working from a home or remote office often use these circuits. 

This service is not specific to any vertical market. Off-Premises Extensions are used by practically all types of business and are available locally as well as nationally. Off-Premises Extensions are sometimes referred to as Off-Premises Station (OPS). 

A Manual Ring Down (MRD) is a dedicated circuit connecting two locations to provide an immediate voice connection. Signaling must be done manually from either location. 

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Auto-Ring Down is a leased voice circuit that connects two single endpoints together. When either telephone handset is taken off-hook, the remote telephone automatically rings. This application is used most frequently for brokerage firms, banks, Wall Street firms and applications that require immediate verbal responses. 

Since ARDs and Hoot’n’Hollers are popular with Wall Street and Recycling Companies, American Telesis has specialized in both types of circuits. We provision them locally (Metro) as well as Long Haul. Our network reach spans the globe. 

This type of voice-grade analog circuit is considered a specialty circuit in that the Bell codes for signaling on both ends are not coded the same on each side, as are most other types of circuits. This is called a 2-state signaling scheme, based upon the use of the “A-Bit”. Like many other voice-grade analog circuits, it can be ordered either as a 2 or 4 wire connection based on the requirement of the customer’s terminating equipment. If any of the segments of the tail circuits into the customer’s premise are in excess of 6 miles, the circuit should be ordered up as a 4 wire. This is followed with a hybrid station pack at the customer site to break it back down to 2 wires for their equipment. 

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