Glossary:

ATIS Telecom Glossary

Search Keyword By: gateway

Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.

Access Gateway

The Access Gateway provides an access interface between multiple types of line side services and devices and the packet network. Examples of these services and devices are Plain Old Telephone Service (POTS) telephones, Basic Rate Interface (BRI) sets, Coin telephones, as well as some Digital Subscriber Line (DSL) and private lines/special services on 2 and 4 wire DS0, DS1 interfaces,… (Read More →)

core gateway

Historically, one of a set of gateways (routers) operated by the Internet Network Operations Center at BBN.
Note: The core gateway system forms a central part of Internet routing in that all groups must advertise paths to their networks from a core gateway, using the exterior gateway protocol (EGP). [Bahorsky]

Delivery Network Gateway

A device implementing the Delivery Network Gateway Function. The DNG may also be termed the RG (Residential Gateway) in other standards bodies.

gateway (GW)

1. In a communications network, a network node equipped for interfacing with another network that uses different protocols.
Note 1: A gateway may contain devices such as protocol translators, impedance matching devices, rate converters, fault isolators, or signal translators as necessary to provide system interoperability. It also requires that mutually acceptable administrative procedures be established between the two networks.
Note… (Read More →)

Legacy Network Gateway

A signaling and media interconnection point between callers in legacy wireline/wireless originating networks and an NG9-1-1 Emergency Services Network. This Functional Element provides MF/SS7-to-SIP signaling interworking, as well as emergency services-specific processing.

Legacy Network Gateway (LNG)

A signaling and media interconnection point between callers in legacy wireline/wireless originating networks and an NG9-1-1 Emergency Services Network. This Functional Element provides MF/SS7-to-SIP signaling interworking, as well as emergency services-specific processing.

Legacy PSAP Gateway

The LPG is a signaling and media interconnection point between the NG9-1-1 Emergency Services Network and legacy PSAPs. It is responsible for interworking the SIP signaling to the Traditional MF or Enhanced MF (E-MF) signaling supported by the legacy PSAP and is responsible for providing emergency services-specific processing associated with transfer requests to and from legacy PSAPs and for processing… (Read More →)

Legacy PSAP Gateway (LPG)

The LPG is a signaling and media interconnection point between the NG9-1-1 Emergency Services Network and legacy PSAPs. It is responsible for interworking the SIP signaling to the Traditional MF or Enhanced MF (E-MF) signaling supported by the legacy PSAP and is responsible for providing emergency services-specific processing associated with transfer requests to and from legacy PSAPs and for processing… (Read More →)

Legacy Selective Router Gateway

The LSRG provides an interface between 9-1-1 Selective Routers and NG9-1-1 Emergency Services Networks. It enables calls to be routed and/or transferred between Legacy and NG9-1-1 networks. It is used in some network deployment models for the transition from Legacy 9-1-1 to NG9-1-1.

Legacy Selective Router Gateway (LSRG)

The LSRG provides an interface between 9-1-1 Selective Routers and NG9-1-1 Emergency Services Networks. It enables calls to be routed and/or transferred between Legacy and NG9-1-1 networks. It is used in some network deployment models for the transition from Legacy 9-1-1 to NG9-1-1.

mail gateway

A computer that connects two or more electronic mail systems (especially dissimilar mail systems on two different networks) and transfers messages between them.
Note: The mapping and translation can be quite complex, and can require a store-and-forward scheme whereby the message is received from one system completely before it is transmitted to the next system after suitable translations. [After Bahorsky]

Media Gateway Control Function

The Media Gateway Controller Function (MGCF) provides the ability to control a trunking media gateway function (T-MGF) through a standardized interface. Such control includes allocation and deallocation of resources of the media gateway, as well as modification of the usage of these resources. The MGCF communicates with the CSCF, the BGCF and circuit-switched networks. The MGCF performs protocol conversion between… (Read More →)

Media Gateway Control Function (MGCF)

The Media Gateway Controller Function (MGCF) provides the ability to control a trunking media gateway function (T-MGF) through a standardized interface. Such control includes allocation and deallocation of resources of the media gateway, as well as modification of the usage of these resources. The MGCF communicates with the CSCF, the BGCF and circuit-switched networks. The MGCF performs protocol conversion between… (Read More →)

Residential Gateway (RG)

Terminates the Access network and the VDSLx or ADSLx network. Also, in most telco implementations includes a router, NAT function, and Network Management functions for both the WAN and the LAN.

Trunk Gateway

The Trunk Gateway provides an access interface between traditional Public Switched Telephone Network (PSTN) circuit-based networks and packet networks. Examples of the PSTN trunk interfaces are Integrated Services Digital Network (ISDN) User Part (ISUP), Primary Rate Interface (PRI), Multi Frequency (MF) and Digital Tone Multi Frequency (DTMF). The Trunk Gateway may also support an interface for line based Generic Requirement… (Read More →)

X.75 Gateway Service

A protocol for network interworking which supports communication between adjacent networks and communication thru transit networks.

Showing 1–22 of 22 results

Show paginated results