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

telephone set
scope note: telephones
narrower: mobile handsets
broader: telephone equipment
preferred label: دستگاه تلفن @fa
related: telecommunication terminal
related: acoustoelectric transducer
related: earphone
type: Concept
alternative label: telephones

mobile handsets
preferred label: گوشی تلفن همراه @fa
type: Concept
broader: telephone set

telecommunication terminal
preferred label: پایانه مخابراتی @fa
type: Concept
related: telephone set

acoustoelectric transducer
preferred label: تراگذار برقاصوتی @fa
type: Concept
related: telephone set

earphone
preferred label: گوشی @fa
type: Concept
related: telephone set