Telecommunications/Technology Glossary Acronyms Abbreviations Dictionary
2BASE-TL to DWDM
A-D E-K L-R S-Z
- 2BASE-TL - IEEE EFM Standard
- 3G - the third generation of mobile phone standards and technology; it supercedes 2G. Depending on the specific implementation and on local conditions, 3G service typically offers minimum bandwidths of 2 Mbps for stationary or walking users, and 348 kbps in a moving vehicle. Although not often reached, there is a theoretical maximum of 21.6 Mbps for a HSPA implementation.
- 4G - the fourth generation of mobile phone standards and technology; it supercedes 3G. Depending on the specific implementation and on local conditions, 4G service typically offers downstream minimum bandwidths of 200 kbps up to maximum bandwidths 672 Mbps. Most implementations peak at 28 or 42 Mbps downstream bandwidth.
- 5G - 5G is the next generation after 4G. In populated areas, 5G should be able to provide consistent 100 Mbps service. It is capable of providing 1G bandwidth.
- 8xx - 800, 833, 844 855, 866, 877 and 888 - prefixes for toll free numbers in the USA and Canada.
- ACD - Automatic Call Distributor (or Director)
- ADSL - Asymmetric Digital Subscriber Line - as opposed to SDSL, the download speed to the customer premises is greater than the upload speed into the Internet, for example, the following are some typical speed options: 1.5 Mb x 128 Kbps, 1.5 Mb x 256 Kbps, 3 Mbps x 384 Kbps, 3 Mbps x 512 Kbps
- AF - Assured Forwarding
- AGV - Automated Guided Vehicles; e.g., vehicles that move around a warehouse floor to perform various tasks like storing and retrieving items in a warehouse or factory.
- AI - Artificial Intelligence
- AIOps - Artificial Intelligence for IT Operations
- ALG - Application Layer Gateway.
- AMI - Alternate Mark Inversion - a type of line coding that has been used for T1 and E1 services. It has been replaced in more recent networks by B8ZS, HDB3, and other codes.
- AON - Active Optical Network
- API - Application Programming Interface - a set of functions that allow for the creation of applications.
- APN - Access Point Name - the name used for a carrier gateway to which individual devices must refer in order to join an associated network.
- ASA - Average Speed of Answer - also known as Average Wait Time (AWT), is the average time it takes for a customer to be connected with an agent.
- ASN - Autonomous System Number - Used for routing on Internet
- ASP - Application Service Provider - an organization that offers application functionality and related services across a network (e.g., the internet) for a monthly fee and/or usage charge.
- ASR - Automatic Speech Recognition (see next item)
- ASR - Automatic Seizure Ratio (see next and previous items)
- ASR - Access Service Request - A request made by a carrier to a LEC for an Access circuit connection to a specific building. (see 2 previous items)
- ATD - Advanced Treat Detection
- ATDS - Automatic Telephone Dialing System
- ATM - Asynchronous Transfer Mode - ATM is a connection-oriented protocol used over the SONET/SDH backbone of the PSTN. It is being replaced by IP.
- ATQ - Authority To Quote
- AWT - Average Wait Time - also known as Average Speed of Answer (ASA), is the average time an inbound caller spends in a queue.
- BCDR - Business Continuity and Disaster Recovery
- BGP - Border Gateway Protocol - BGP is used to accomplish load balancing when you have more than one dedicated circuit from more than one ISP
- BI - Business Intelligence
- BPL - Broadband over Power Lines
- BPO - Business Process Outsourcing
- BTN - Billing Telephone Number
- BUaaS- BackUp as a Service.
- BW - bandwidth
- BYOD - Bring your own device - For example, some organizations supply devices like smart phones and tablets to employees. Other organizations allow employees to place business applications on their own devices. This latter is a BYOD approach.
- BYON - Bring your own network.
- CallerID - A service which transmits the caller's phone number to the called party along with the ringing signal. See CNAM.
- CAS - Channel Associated Signaling - a form of digital communications signaling in which the routing information directing the payload to its destination is in band; i.e., within the same channels as voice and/or data transmission, as opposed to out-of-band; i.e., on a separate control channel. See CCS.
- CASB - Cloud Access Security Broker
- CBC - Call By Call
- CBR - Committed Bit Rate
- CBRS - Citizens Band Radio Service - a private, 2-way, short distance voice communications service.
- CCaaS- Contact Center as a Service.
- CCIS - Common Channel Interoffice Signaling - a form of out-of-band-signaling. See CCS.
- CCM - Chronic Care Management
- CCP - Concurrent Call Paths.
- CCS - Common Channel Signaling aka as CCIS - a form of digital communications signaling in which the routing information directing the payload to its destination is out-of-band; i.e., on a separate control channel than voice and/or data transmission, as opposed to in band; i.e., within the same channels. (See CAS and next item)
- CCS - Concurrent Call Sessions = number of simultaneous voice paths (see previous item)
- CDE - Common Desktop Environment
- CDMA - Code Division Multiple Access - a wireless technology using TIA/EIA IS-95 protocol that allows multiple cell phones to share bandwidth used by carriers such as Sprint and Verizon Wireless.
- CDN - Content Delivery Network
- CDP - Cisco Discovery Protocol - a Cisco proprietary Layer 2 protocol (Data Link protocol) used to share information between Cisco devices.
- CDR - Call Detail Record (or Recording). CDR is - the capture of data regarding incoming and outgoing telecommunication interactions; e.g., Caller ID, time of call, duration, and completion status. (see next item)
- CDR - Committed Data Rate - bandwidth equivalent of the port at each customer location. (see previous item)
- CE - Customer Edge of network - Customer equipment connected to a Ethernet service
- CEF - CISCO Express Forwarding - an industry standard for binding data Ts together without voice or video service.
- CEM - Critical Event Management
- CET - Carrier Ethernet Transport - an architectural approach to building scalable transport infrastructure for supporting the evolution to NGNs that integrates Ethernet tunnel switching and intelligent WDM (WDM giving the ability to do multi-degree switching at wavelength and sub wavelength levels).
- CIR - Committed Information Rate
- CISO - Chief Information Security Officer
- CLEC - Competitive Local Exchange Carrier - a phone company that competes with an ILEC.
- CLI - Command Line Interface - programming that allows interaction between a human and a compoter (device or system) via simple command line entries as opposed to a GUI.
- CMMC - Cybersecurity Maturty Model Certification - a control framework required in order to sell products or services to DoD. (Persimmon Connections can set you up to obtain this certification.)
- CMS - Content Management System
- CNAM - Calling Name Delivery - a service which transmits the caller's name in addition to the caller's phone number to the called party along with the ringing signal. See CallerID.
- CO - Central Office - This is the building near your location that your phone and internet lines run to.
- COS - Class of Service - IP traffic prioritization
- CPaaS - Communications platform-as-a-service - a cloud-based platform that enables developers to add real-time communications features to their own applications without needing to build backend infrastructure and interfaces.
- CPE - Customer Premise Equipment - Equipment at a customer location owned or leased by the customer.
- CPM - Customer Provisioning Manager
- CPN - Called Party Number - also known as 'DID' or 'DNIS', this is typically the last 4 digits of the number dialed; required for inbound routing on a PRI. This use conflicts with the definition below! (see next items)
- CPN - Calling Party Number - the number transmitted through the network as the number from which a call originated. This use conflicts with the definition above! (see next item and previous item)
- CPN - Cellular Provider Network. (see next item and previous item)
- CPN - Customer Premise Network. (see previous items)
- CPNI - Customer Proprietary Network Information - individually identifiable information that is created by a customer's relationship with a communications provider, for example, data about the duration, frequency and timing of calls, information on a customer's bill and call detail information.
- CRAN - Converged Regional Area Network - a network larger than a metro-area network that includes one or more metro area.
- CRDD - Customer Requested Due Date - Date by which customer would like to have service turned on.
- CRM - Customer Relationship Management - the strategy an organization uses to manage and analyze the interactions it has with customers, including past, present, and future customers, in order to create the most successful business possible. It is a broad term that takes into account people, processes, and technology that relate to customer acquisition, retention, customer records and the CX overall.
- CS - Class Selector
- CSaaS - CyberSecurity as a Service
- CSAT - Customer Satisfaction Score
- CSG - Cloud Services Gateway
- CSOC - Comprehensive Service Order Attachment
- CSP - Content Security Policy. (see next item)
- CSP - Cloud Service Provider. (see previous item)
- CSR - Customer Service Record
- CSU - Channel Service Unit - For digital lines, provides termination for the digital signal and ensures connection integrity through error correction and line monitoring.
- CSU/DSU - Channel Service Unit/Data Service Unit - Connects a digital line (e.g., T1 or DS3) to a LAN; typically routers have CSU/DSUs built in.
- CTI - Computer Telephony Integration - enables contact center solutions to access information from other systems.
- CTR - Click to Run
- CUI - Controlled Unclassified Information
- CWDM - Coarse Wavelength Division Multiplexing - This technology greatly increases the carrying capacity of fiber optic cables. It uses up to 8 different wavelengths for different channels. See DWDM.
- CX - Customer Experience
- DaaS - Desktop as a Service - a virtual desktop in the cloud. To access DaaS, one can use devices such as a tablet, laptop, simple or old PC, smart phone.
- dApps - Decentralized applications
- DC - Data Center
- DDOS - Distributed Denial of Service
- DDR - double-data rate - normally applied to DRAM
- DECT - Digital Enhanced Cordless Telecommunications - a digital wireless telephone 3G technology using TDMA over radio frequencies (1880-1900 MHz in Europe and many other areas; 1920-1930 MHz, or 1.9 GHz in the USA) to cordless phones.
- DeFi - Distributed Finance - allows you to transfer money without the involvement of banks or other financial institutions instead using smart contracts on a blockchain.
- DeMarc - Demarcation Point - point where telecommunications facilities owned by one organization interface with those of another organization - typically the point at an organization's floor telephone closet were organization circuit(s) interfaces with the telephone service provider's circuit(s).
- DHCP - Dynamic Host Configuration Protocol - Protocol by which IP addresses and other parameters are assigned to clients for a certain time period (Lease).
- DIA - Dedicated Internet Access - This includes fractional T1, T1, bonded T1, fractional T3, DS3, and OC3 service.
- DID - Direct Inward Dialing - A feature that allows there to be more direct dial phone numbers than there are lines into a location. When a call comes through, the number that was dialed is passed with the call so that a PBX can handle the call in a prescribed manner. For example, there may be 100 offices within a building with only 20 phone lines coming in from the phone company. With 100 DIDs, the PBX can send an incoming call to whichever of the 100 offices is assigned the DID that was dialed.
- DLCI - Data Link Connection Identifier
- DLP - Data Loss Prevention
- DLT - Distributed Ledger Technology - refers to the technology infrastructure and the protocols used to replicate, share, and synchronize digital data over multiple locations. It's also known as blockchain technology.
- DMH - Dual Mobile Handset - a handset that has Wi-Fi and traditional cellular offerings in one device.
- DMPO - Dynamc Multi-Path Optimization
- DMZ - A demilitarized zone - A subnetwork which is accessible from/to the outside which typically sits between the outside and the organization's private LAN(s) providing a layer of security to the LAN(s) in addition to the firewall(s) between the DMZ and the LAN. A DMZ is sometimes called a perimeter network.
- DNC - Do Not Call - List of phone numbers that telemarketers are legally not allowed to call.
- DOCSIS- Data Over Cable Service Interface Specification - DOCSIS is an international telecommunications standard that permits the addition of high-speed data transfer to an existing Cable TV (CATV) system. Cable providers use DOCSIS to provide Internet access over their HFC infrastructure.
- DoS - Denial of Service
- DPI - Deep Packet Inspection - a feature of NGFWs
- DRAM - dynamic random access memory
- DSCP - Differential Services Code Point
- DSL - Digital Subscriber Line - a family of technologies that offers digital data transmission between the local phone company Central Office and the customer. Typically, DSL speeds range between 128 Kbps and 3 Mbps. See ADSL, IDSL and SDSL for some of the different options. Cost and reliability of DSL service is less than that of T1 service.
- DSLAM- DSL access multiplexor
- DSM - Dynamic Spectrum Management.
- DSU - Data Service Unit - For digital lines, converts T1 or T3 line frames into frames the LAN can interpret and vice versa; it manages timing errors and signal regeneration.
- DTO - direct termination overflow - a feature whereby a call being terminated on a phone trunk can be forwarded to a 10-digit phone number if the trunks are full.
- DVI - Digital Visual Interface
- DWDM - Dense Wavelength Division Multiplexing aka WDM - This technology exponentially increases the carrying capacity of fiber optic cables. It can transmit up to 80 different wavelengths for different channels. Only a handful of the largest telecommunications providers operate commercial DWDM networks. Few organizations need such capacity.
Telecommunications/Technology Glossary Acronyms Abbreviations Dictionary
2BASE-TL to DWDM
A-D E-K L-R S-Z
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