Telecommunications Glossary of terms used on this site

There are 236 entries in this glossary.
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Term Definition

A Regional Bell Operating Company, or RBOC, is a telephone company formed after the divestiture of AT&T.

Aliases (separate with |): Regional Bell Operating Company
Real-time Transport Protocol

Real-time Transport Protocol or RTP defines a standardized packet format for delivering audio and video over the Internet. RTP is used throughout communication systems that involve streaming media, such as telephony, video teleconference applications and web-based push to talk features and facilitates media streams controlled by H.323, MGCP, Megaco, SCCP, or Session Initiation Protocol (SIP) signaling protocols, making it one of the technical foundations of the Voice over IP industry.

Aliases (separate with |): RTP
Remote UNI

A Remote User Network Interface, or Remote UNI, is a UNI acting as the UNI Tunnel Access (UTA) component consisting of a collection of service attributes in the UNI within an Operator’s MEN. The remote UNI is paired with a Virtual UNI (VUNI) in a Provider’s Metro Ethernet Network (MEN). At the remote UNI, Service Frames are exchanged between the Subscriber and the Network Operator MEN.

Aliases (separate with |): Remote User Network Interface
Resilient Packet Ring

A Resilient Packet Ring is a Media Access Control (MAC) protocol standard that adds resiliency and protection ring topology packet networks.

Aliases (separate with |): RPR
Resource Reservation Protocol

A protocol that enables the reservation of resources within an internet protocol or IP network. Applications running on IP network endpoints may utilize Resource Reservation Protocol or RSVP to communicate to other network endpoints the favorable data stream characteristics of packet groups to be received including bandwidth, maximum burst and jitter.

Aliases (separate with |): RSVP
Resource Reservation Protocol

Resource Reservation Protocol or RSVP is a Transport Layer protocol designed to reserve resources across a network. RSVP operates over an IPv4 or IPv6 Internet Layer and provides receiver-initiated setup of resource reservations for multicast or unicast data flows. It does not transport application data but is similar to a control protocol, like ICMP, IGMP. RSVP and is defined in Internet Engineering Task Force or IETF RFC 2205. RSVP can be used by either hosts or routers to request or deliver specific levels of quality of service or QoS for application data streams or flows. RSVP defines how applications place reservations and how they can relinquish the reserved resources once the need for them has ended.

Aliases (separate with |): RSVP

Request for Comments or RFC is a memorandum published by the Internet Engineering Task Force or IETF outlining and illustrating methods, behaviors, research, or innovations applicable to the function of the Internet and Internet-connected systems.

Aliases (separate with |): Request for Comments
Rooted-Multipoint EVC

A Rooted-Multipoint EVC is a multipoint Ethernet Virtual Connection (EVC) in which each UNI is designated as either a Root or a Leaf. Ingress Service Frames at a Root UNI can be delivered to one or more of any of the other UNIs in the EVC. Ingress Service Frames at a Leaf UNI can only be delivered to one or more Root UNIs in the EVC.


Resilient Packet Ring


Rapid Spanning Tree Protocol

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