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 ?
x and GR-303 access systems, Essentra(TM) GATE integrates legacy access infrastructure - including digital loop carriers, wireless local loop, FTTx, and cable - into the NGN core network.
HTC will deploy the BLC 6440 Gigabit Ethernet Optical Packet Transport Blade in its central office (CO) to deliver Gigabit Ethernet transport and to provide a direct next-generation softswitch connection, as well as the BLC 6640 Subscriber Trunk Gateway Blade to provide TR-08 and GR-303 Class 5 switch interfaces.
x and GR-303 access systems, Essentra(TM) GATE integrates legacy access infrastructure -- including digital loop carriers, wireless local loop, FTTx, and cable -- into the NGN core network.
Digium hardware supports traditional voice protocols, including PRI, RBS, FXS, FXO, E&M, Feature Group D, Groundstart, Loopstart, and GR-303.
The integrated Tekelec 7000-Tekelec 6000 enhanced VoIP solution uniquely benefits IOCs with its support for delivering SIP-based services and applications to residential and business customers - whether they use GR-303, POTS or broadband IP connections.
This trifecta of E911, local number portability and CALEA, as well the previously-announced support of GR-303, expands our addressable market and creates a roadmap to success for our U.