Affordable Multi-tenant video Intercom system options best for NYC

[Kiah Husbands]

Hi, I own a brownstone with 4 units. Can anyone recommend some affordable video intercom systems. Preferably something that works with wifi. I've heard of Butterfly MX, but $3,000 is way out of my budget. 

And if not an intercom system, any ideas on how to make something work for all my tenants at once?

[Kiah Husbands]

Thanks @Abel Curiel, I haven't heard of those before. So I'll definitely check them out.

And thanks @Mohammed Rahman,  I figured the big brands would be a no-go. I'll see if there are more local options to consider. If you do know of any recommendations, please send my way.