repeaters
preferred label: تکرارکننده‌ها @fa
type: Concept
related: telephone equipment

telecommunication equipment
preferred label: تجهیزات مخابراتی @fa
type: Concept
narrower: telephone equipment

telephone systems
preferred label: سیستم‌های تلفنی @fa
type: Concept
related: telephone equipment

transmitters
preferred label: فرستنده‌ها @fa
type: Concept
related: telephone equipment

telephone equipment
type: Concept
related: telephone systems
related: transmitters
related: repeaters
related: receivers
alternative label: TELEFONOS
preferred label: تجهیزات تلفن @fa
broader: telecommunication equipment

receivers
preferred label: گیرنده‌ها @fa
type: Concept
related: telephone equipment