Common Terms
Learn About > Common Terms
A glossary of common terms used within the telecommunications industry.
| ADSL |
Asymmetric Digital Subscriber Line |
| ATM |
Asynchronous Transfer Mode |
| CLEC |
Competitive Local Exchange Carrier |
| CO |
Central Office |
| CSP |
Communication Service Provider |
| CTC |
Cabinet Test Controller |
| DELT |
Double Ended Line Test |
| DSL |
Digital Subscriber Line |
| DSLAM |
Digital Subscriber Line Access Multiplexer |
| ILEC |
Incumbent local exchange carriers |
| ISMC |
UTELs Intelligent Switch Matrix Controller |
| ISP |
Internet Service Provider |
| LLU |
Local Loop Unbundling |
| MELT |
Metallic Line Test |
| MTAM |
Modular Test Access Matrix |
| OpEx |
Operational Expenditure |
| POTS |
Plain Old Telephone Services (Voice services) |
| SELT |
Single Ended Line Test |
| TAM |
Test Access Matrix |
| TASM |
Test Access Switch Matrix |
| Test Head |
Equipment capable of performing tests on a customers line |
| VDSL |
Very high speed Digital Subscriber Line |