Phone signaling is also just making calls point to point. Very simple. Well except that making it not crash, making it scale, handling corner cases, legacy devices, regulatory stuff.
One can sort of take a high level look at a large class of system and just say "it sends messages from one part to another". A financial transaction sends one message from one account to another one. A lot of sites and businesses are "just" get data from database send to web page, then send updates back to the database. Pretty simple.
The devil is in the details and in the proof of work. If it is simple, ok, do it. Not being facetious, you might actually succeed. Just try it. Erlang is a good choice for it, start with that.
One can sort of take a high level look at a large class of system and just say "it sends messages from one part to another". A financial transaction sends one message from one account to another one. A lot of sites and businesses are "just" get data from database send to web page, then send updates back to the database. Pretty simple.
The devil is in the details and in the proof of work. If it is simple, ok, do it. Not being facetious, you might actually succeed. Just try it. Erlang is a good choice for it, start with that.