telephony
preferred label: مکالمه راه دور @fa
type: Concept

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

call centre
preferred label: مرکز برخوانی @fa
type: Concept
broader: automatic telephone system

computer telephony integration
preferred label: تلفیق تلفن و رایانه @fa
type: Concept
related: automatic telephone system

electronic switching system
preferred label: سامانه سودهی الکترونیکی @fa
type: Concept
related: automatic telephone system

automatic telephone system
preferred label: سامانه تلفن خودکار @fa
type: Concept
related: computer telephony integration
related: telephony
related: electronic switching system
broader: telephone equipment
narrower: call centre
scope note: automatic call distribution system
alternative label: automatic call distribution system