|
|
 |
- Rate Center (referred to as RRD in RDBS)
- A geographically specified area used for determining mileage and/or usage dependent rates in the Public Switched Telephone Network. The geographic point is identified by a specific Vertical and Horizontal (V&H) coordinate that is used to calculate distance-sensitive end user traffic to/from the particular NPA-NXXs associated with the specific Rate Center. A rate center is not always the exact equivalent of an Exchange Area, but can be.
- RBOC (Regional Bell Operating Company)
- Refers to any of the "Ma Bell" local exchange carriers, such as Pacific Bell, Southwestern Bell, etc.
- Resp Org
- Responsible Organizations are entities designated to manage and administer a customer's Toll Free number using the SMS/800 system.
- ROE (Right of Entry)
- Router
- A device, with routing intelligence, that connects parts of local and remote networks together. Because they use routing tables to look up addresses for each message, routers introduce delays into networks.
- Service Provider
- Any entity that is authorized, as appropriate, by local, state, federal, or other governmental authorities within the area served by the NANP to provide communications services to the public. Same as "Telecommunications Service Provider". (npagdln.doc, INC Documents, http://www.atis.org/atis/clc/ic/incdocs.html)
- Service Territory
- The area in which a CLC is authorized to provide service.
- SONET (Synchronous Optical Network)
- A standard for transmitting high-speed digital bits over fiber optic cabling. Telephone companies use SONET to transmit data from multiple customers.
- SS7 (Signaling System 7)
- The signaling protocol, Version 7, of the CCS network, based upon American National Standards Institute (ANSI) standards, which allows all carriers' networks to work together. Protocols are: CCS is common channel signaling, which allows signals to be sent in both directions, which results in faster speeds.
- T-1
- Slang, and now most common identification for a DS-1. See DS-1 for definition.
- T-3
- Slang, and now most common identification for a DS-3. See DS-3 for definition.
- TC (Technical Consultant)
- A technical consultant from the marketing department.
- Toll Free
- When calling a Toll Free number (area code/NPA 800, 888, 877), the dialing party incurs no toll charges.
- Wire Center
- A building or space within a building that serves as an aggregation point on a LEC's network, where transmission facilities and circuits are connected or switched.
Wire Center can also denote a building in which one or more Central Offices, used for the provision of exchange services and access services, are located.
- 1.544 Mbps Circuit
- See DS-1.
- "9-1-1"
- The three-digit telephone number that has been designated as the "Universal Emergency Number," for public use throughout the United States to request emergency assistance. It is intended as a nationwide telephone number giving the public direct access to a Public Safety Answering Point (PSAP) which will be responsible for taking the appropriate action.
|
|
