T1 | Metro-E | MPLS | PRI | VoIP

ISDN PRI

ISDN PRI is a standard all digital access technology that allows for simultaneous, integrated voice and data capabilities over standard existing telephone lines and PBX phone systems.

Integrated Service Digital Network Primary Rate Interface (ISDN PRI) is configured with 23 bi-directional B (Bearer) channels and one D (Data) channel enabling a total transmission speed of up to 1.536Mbps. Unique to ISDN PRI is its ability to designate the D channel to handle all of the signaling and call control requirements and leave the remaining 23 B channels free for voice, data, or a combination of voice and data on the PRI.

Unlike analog trunk lines, PRI offers Caller ID delivery, which provides name and number information from the calling party. ISDN PRI is a standard all digital access technology that allows for simultaneous, integrated voice and data capabilities over standard existing telephone lines and PBX phone systems. ISDN PRI offers an array of value-added features, such as:

  • The ability to assign individual telephone numbers to each work station or desk in blocks of 20 DID’s, it is very common to have 40-100 DID telephone numbers assigned to single PRI
  • 50% savings when compared to traditional analog telephone lines
  • The ability to provide voice and data Internet traffic over one T1 circuit instead of having a separate voice and data T1
  • Leverage advanced features to support call center applications, or to extend the life and value of an existing PBX system, while reducing call set-up and connection time by up to 90%
  • Dynamically allocate channels to adapt to changes in traffic patterns and increase trunking efficiency by up to 35%
  • Use your existing infrastructure to enable all digital, high-speed voice and data applications that increase productivity