As you scroll through the online search results for intercoms, no doubt you've seen a confusing array of choices for wired intercoms. You are faced with decisions of whether to purchase wired or wireless; 2-wire, or Cat-6; video or voice only; full-featured or basic features only. You can even purchase systems that transmit and receive over your house or business power lines.
Here are the 3 most common types of intercom systems:
1. Carrier-Current Intercom
2. Hardwired Intercom
3. Wireless Intercom (Most common application in today's market)