OSPSOperator Service Position System
TTNTandem Tie-line Network
NICDNIckel CaDium (usually NiCd)
APApplication Process / Application Profile / Attached Processor
ASTMAmerican Society for Testing Materials
AMSPAssociation of Microsoft Solutions Providers
NMNever mind / Nanometer (usually as Nm) / Network Management / Network Module
AGISApex Global Information Services
AINAdvanced Intelligent Network
CMTCellular Mobile Telephone
ACCOLCAccess Overload Class
OSPSOperator Service Position System