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Intercom system has come a long way in the last 15 years, from the first audio only system which were very large in size. To sleek elegant designs in almost all products offered to the market today. With crime on the rise having an intercom system not only serves as a convenience but also as a layer of security within your home and business. Being able to speak and see your guests is a great way to identify people before opening doors.
 

Variations of Intercom System

 
There are generally two different types of intercom systems to choose from. Some of these include, Audio only intercoms and Audio and video intercoms, both often have an unlock feature where the person inside can unlock the door or gate to let the visitor in. If the unlock function is to be used either an electric lock will be required or a signal cable to a sliding gate controller.
 

Wiring types of intercom systems

 
The first and traditionally most common form of intercom comunication is hard-wired, this is when the internal handset in hard-wired to the entry station at the gate. This type runs off mains power and is generally the most reliable.
 
Intercoms are generally cabled in 3 different types of cabling
– 2 Pair phone cable
– 14020 stranded security cable
– Cat5/6 Ethernet cable
If your system is not able to be hard wired, you can opt for a wireless intercom, these systems are generally battery operated and higher long term maintenance. The main benefit to installing a wireless intercom is your installation costs will generally be lower than a hard-wired intercom. It should be noted that some environments are subject to wireless interference when choosing to have a wireless intercom installed. So we generally recommend hard-wiring where possible as there are more long term benefits when compared to wireless intercoms.
 

Additional Features on intercom systems

 

 
Intercom systems have a few additional features which are available with some models and should be taken into consideration. Some of these features include the ability to ring through to your mobile phone if the call is not answered within the premise. Certain models have the ability to store snapshots and messages of missed calls and can have the camera integrated into CCTV systems. Keep in mind some intercoms do not support an unlock feature, when the unlock feature is require consider whether the lock trigger relay is on the indoor unit or outdoor unit as this will change your cabling requirements.
 
– Hikvision
– Dahua
– Aiphone
– BPT
– Elvox
– Kocom
– Ring

 

Installation Considerations

When deciding which intercom system is right for you its important to look at where your intercom entry station will be mounted and whether you require a vandal resistant entry station or whether a surface mount will do. Flush mount vandal resistant intercom entry station are generally safer as they are much harder to tamper with and be removed from the wall. Some manufacturers flush mounts intercoms have to slide in to a groove to lock in, these types of video intercoms are generally not suits to rough surfaces.

Conclusion

With so many different types of intercoms its important to consider the above information when purchasing a system. A good quality intercom will last up to 20 years so it is important to make the right decision. All the manufacturers listed above have a large variety of quality products which you will be able to browse any find a correct system.