telephone system
preferred label: دستگاه تلفن @fa
type: Concept
related: telephone line

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

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

drop wire
preferred label: سیم ورودی @fa
type: Concept
related: telephone line

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

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

waveguide
preferred label: موج‌بر @fa
type: Concept
related: telephone line

carrier telephone
preferred label: تلفن حاملی @fa
type: Concept
related: telephone line

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

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

comparator circuit
preferred label: مدار مقایسه‌کننده @fa
type: Concept
related: telephone line

telephone line
related: comparator circuit
related: drop wire
related: submarine cable
related: telephone exchange
related: coaxial cable
related: line concentrator
related: waveguide
related: telephone system
related: carrier telephone
related: telephone
type: Concept
preferred label: خط تلفن @fa
broader: telephone equipment
broader: telecommunication line

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