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AtlasPhones has maintained our status as the customer service leader in the Business Telecom Industry since 1998 - 5-Star Rated by Yahoo! Shopping Network - Same Day Shipping - Ultra Competitive Prices - AtlasPhones Warranty - Secure Online Ordering - Free Technical Support - Huge Inventory - Free Ground Shipping* In Continental U.S.A. - "The Trusted Source" TN 570B Expansion Interface
Provides an interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets
Used in a Port Network (PN) between a PN and another PN in a direct-connect system and a PN and an SNI in a switch node carrier in a CSS-connected system
Provides control channel applications and time-slot interchanging between the PPN and EPNs
Used when ISDN-BRI and/or ASAI is connected in an EPN
Used in R7si/r or later systems
One Year Warranty
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A portion of each purchase will be donated to The Children's Miracle Network.
For more information, visit childrensmiraclenetworkhospitals.org
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