They also give both audio and video management of door access. This adds more security properties to the intercom systems. Thus, whenever someone presses the door bells, you are instantly alerted and you can directly speak to the visitor (from the safety of your interiors), ask him to introduce himself or the reason for his presence.
Being a two-way communication device, Intercom also enables the visitor to answer back to you and thus you can make up your mind on whether the visitor is familiar & expected or stranger & suspicious. Thus, any untoward incident of forced entry by a crook can be avoided. Not having to open the door right away for visitors is one way that intercom systems can give you protection. The wireless doorbells alongside wireless Intercoms also proffer that complete comfort since you need not get up every time to answer the door. If your business is not already using one, it might be time to consider implementing an intercom system. The type which will suit your company best depends on whether you regularly need to admit visitors, or if you’re a closed site.