GR-303


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GR-303

(Generic Requirement-303) A Telcordia standard interface to a Class 5 telephone switch from a digital loop carrier (DLC). This is the primary interface to the telco switch from the outside world. In order to connect directly to the PSTN, IP phones and IP telephony gateways must adhere to GR-303. See Class 5 switch and IP telephony.
References in periodicals archive ?
Designed for long-term use in optical and copper networks, the Mainsail 8000 combines the functionality of multiple devices, including a cross-connect, multiservice access platform, GR-303 gateway, M13 and T-1/T-3 mux, ATM switch, SONET ATM add/drop mux, DSLAM, DSLAM concentrator, and low-cost DLC.
SLICE 2100 Offers GR-303 & V5.2 for Multiple Access Solutions
GR-303 and V5.2 expand line capability and control RDT and access nodes, concentrating network resources and reducing costs.
The OCX incorporates a core set of revenue generating CLASS & Custom Calling features, as well as essential network and regulatory requirements including LNP, AIN, AMA, GR-303, SS7, PRI, CAS, E911 and CALEA.
The hand-held unit includes a broad range of SONET/BERT transmission analysis and service verification capabilities, including ATM/IP, ISDN PRI, GR-303, legacy VF and SS7.
Taqua's Open Compact Exchange (OCX) distributed Class 5 access switch supports all emerging industry standards and technologies, including ISDN-PRI, HDSL, ATM, SONET, GR-303, VToA and VoDSL interoperability.
The TB 200 unpacks the voice channels, converts them back into circuits, and passes the voice calls on to the Class 5 switch using the BellCore GR-303 protocol.
Additional GR-303, Frame Relay and SS7 options provide ping capability.--Electrodata
PSTN connectivity is flexible, with a variety of signaling standards at the central office, including ISDN, ISDN NFAS, GR-303 and SS7.
The voice gateway uses a standard GR-303 interface over T1 facilities to connect to the voice switch.
This high bit-rate digital test set equips the field technician for BER testing from 1.544 Mbps to 155.2 Mbps, full-duplex T1 testing, VF channelized call set up and analysis, ISDN PRI, and GR-303 protocol analysis.