How business calling actually works

Plain explanations of cloud phone systems, AI voice agents, and the rules that apply to business calls in India — written for people deciding what to buy, not for people who already have.

Calling compliance in India

What the rules actually require before you point an automated call at a customer — and where each rule is written down.

In progress.

AI voice agents

What they are, how they differ from an IVR, what they are bad at, and how to tell whether one is working.

  • What is an AI voice agent? — An AI voice agent answers and places phone calls on its own — understanding speech, deciding what to do, and replying in a natural voice. Here is how one actually works, where it beats an IVR, and where it still does not.
  • Why voice bots fail at Hinglish — Hinglish changes language inside a sentence, and most voice stacks are built to pick a language and then listen. Here is what actually breaks — in the transcript, in the reply, and in the benchmark that is supposed to tell you how well it went.
  • AI voice agent vs IVR vs chatbot — Three products with overlapping marketing and genuinely different jobs. What separates them, the question that actually decides which you need, and the three confusions that come up on every sales call.

Phone system fundamentals

Cloud PBX, SIP trunks, extensions and channels — the vocabulary a buyer needs before comparing anything.

  • What is a cloud PBX? — A cloud PBX is your company's phone system run as software on someone else's servers instead of a box in your office. What it actually does, the five words you need before comparing anything, and how to work out what size you need.
  • What is BYOC (bring your own carrier)? — Most business phone systems sell you the software and the calling together. BYOC separates them: you keep your own carrier contract, numbers and rates, and pay for the phone system on its own. When that is worth doing, and when it is not.

What it costs

How business telephony is priced, which costs are hidden in a bundle, and how to work out your own number.

  • Per-extension vs per-minute pricing — Two ways to charge for a phone system, and they suit opposite kinds of business. The formula that tells you which is cheaper for you, how to find the two numbers it needs, and why most real systems end up being both.