Telephone System

The telephone network is made of three major components: local loops, switching offices, and ________

• handsets

• POP

• trunks

• tandems

The carrier that handles intra-LATA services is called a __________.

• XCH

• POP

• IXC

• LEC

The services offered by the common carriers (telephone companies) inside a LATA are called ___________ services

• inter-LATA services

• infra-LATA services

• intra-LATA services

• LATA services

™The telephone network has several levels of switching offices such as end offices, __________offices, and regional offices

• trunk

• POP

• tandem

• national

The services between LATAs are handled by _____________.

• IXCs

• XCHs

• inter-LATA

• intra-LATA

The _______________ is responsible for setting up voice calls in SS7

• SC

• SP

• TUP

• ST

The signaling network also includes a SCP that controls the whole operation of the network. SCP stands for ______

• service center point

• signal control point

• signal center point

• service control point

The signaling network uses nodes called STPs that receive and forward signaling messages. STP stand for ________

• symbol transfer port

• signal transport point

• signal transfer point

• signal transport port

A telephone network today can be thought of as two networks: a data transfer network and

a ________ network

• switching

• supervisory

• signaling

• packet

The user telephone or computer is connected to the SPs. SP stand for _______

• signal port

• system point

• switch port

• signal point