computer telephony integration
type: Concept
broader: telephony
preferred label: تلفیق تلفن و رایانه @fa

Internet telephony
type: Concept
broader: telephony
preferred label: تلفن اینترنتی @fa

radiotelephony
type: Concept
broader: telephony
preferred label: رادیوتلفنی @fa

telephone equipment
type: Concept
broader: telephony
preferred label: تجهیزات تلفن @fa

telephone interference
type: Concept
broader: telephony
preferred label: تداخل تلفنی @fa

telephone network
type: Concept
broader: telephony
preferred label: شبکه تلفن @fa

telephone traffic
type: Concept
broader: telephony
preferred label: شدآمد تلفنی @fa

videotelephony
type: Concept
broader: telephony
preferred label: تلفن تصویری @fa

telephony
type: Concept
alternative label: carrier telephony
broader: telecommunication services
narrower: telephone network
narrower: computer telephony integration
narrower: telephone equipment
narrower: telephone traffic
narrower: telephone interference
narrower: Internet telephony
narrower: videotelephony
narrower: radiotelephony
preferred label: مکالمه راه دور @fa
related: voice mail
related: telecommunication control
related: telecommunication computing
related: office automation
scope note: for telephone industry, use "public utilities"

voice mail
type: Concept
preferred label: پست صوتی @fa
related: telephony

telecommunication services
type: Concept
narrower: telephony
preferred label: خدمات مخابراتی @fa

office automation
type: Concept
preferred label: خودکارسازی اداری @fa
related: telephony

telecommunication computing
type: Concept
preferred label: رایانش مخابرات @fa
related: telephony

telecommunication control
type: Concept
preferred label: کنترل مخابراتی @fa
related: telephony