subscriber loop
preferred label: گره مشترک @fa
type: Concept
broader: telephone line

telephone equipment
preferred label: تجهیزات تلفن @fa
type: Concept
narrower: telephone line

comparators (circuit)
preferred label: مقایسه‌کننده (مدار) @fa
type: Concept
related: telephone line

coaxial cable
preferred label: بافه هم‌محور @fa
type: Concept
related: telephone line

line concentrator
preferred label: تمرکزساز خط جریان @fa
type: Concept
related: telephone line

telephone network
preferred label: شبکه تلفن @fa
type: Concept
related: telephone line

telephone line
preferred label: خط تلفن @fa
related: comparators (circuit)
related: line concentrator
related: submarine cable
related: coaxial cable
related: telephone exchange
related: telephone network
type: Concept
scope note: line (telephone)
broader: telecommunication transmission line
broader: telephone equipment
narrower: subscriber loop
alternative label: line (telephone)

telephone exchange
preferred label: مرکز تلفن @fa
type: Concept
related: telephone line

telecommunication transmission line
preferred label: خط انتقال مخابراتی @fa
type: Concept
narrower: telephone line

submarine cable
preferred label: بافه زیردریا @fa
type: Concept
related: telephone line