You can build this. Here is what you are signing up for.
You can absolutely build this. Twilio for the line, an LLM for the conversation, a speech stack in the middle, a database for the contacts, a queue for the retries. Teams do it, and some do it well. It is worth being honest about what you are taking on.
Feature comparison
| Convarza AI | A DIY stack | Notes | |
|---|---|---|---|
| Answering a call with an LLM | ✓ | ✓ | This part is a weekend. It is also 10% of the work. |
| Interruption handling and latency tuning | ✓ | You build it | Turn-taking is where most demos fall apart in production. |
| Per-language voices | ✓ | You build it | Plus the voice-provider contract and its billing. |
| WhatsApp Business API approval | ✓ | You build it | Templates, approval flow, rejection handling. |
| Nine chat channels | ✓ | You build it | Each with its own API, webhook shape and edge cases. |
| A shared inbox your team will use | ✓ | You build it | This is a real product, not a feature. |
| Roles, assignment and audit | ✓ | You build it | Usually discovered after the first incident. |
| Calling hours, retries, DND handling | ✓ | You build it | Compliance is not optional and not interesting. |
| Someone to page at 2am | ✓ | You build it | Your on-call rotation is the SLA. |
| Marginal cost at low volume | Subscription | Lower | DIY wins on unit cost and loses on everything before it. |
This table describes the category, not one named product. Vendors differ and change often — verify against current documentation before deciding.
When the other option is the right one
Build it if the conversation logic is your actual product and the differentiation lives there. Buy it if the conversations are how you sell or support something else — in which case the six months are the real price, not the subscription.
The whole platform, on every plan
Shared inbox
WhatsApp, Instagram, Facebook, Telegram, Viber, LINE, your web widget, SMS and email land in a single queue your team actually works from.
AI chatbot
One bot answers WhatsApp, Instagram, your web widget, SMS and email — and hands the conversation to a person the moment your condition says it should.
AI voice agents
An AI agent answers your line in natural speech, follows your prompt, calls your functions, and hands to a human the moment it should.
Call flows
Ring agents, hand to an AI agent, branch on a condition, run an IVR menu, check business hours, take voicemail — as one flow you can read.
Campaigns
Pick a line, pick who answers, describe the follow-up sequence in plain English, and let it work the list inside your calling hours.
Workflows
When this happens · only if · then, in order. Numbered steps, an owner who is told when it fails, and a Live toggle. No formula builder.
About this comparison
Is this comparison about a specific product?
No. It compares Convarza AI with the category of a DIY stack, because individual products in that category differ and change often. Check any specific vendor's current documentation before you decide — and tell us if we have characterised the category unfairly.
When would you tell me not to buy Convarza AI?
Build it if the conversation logic is your actual product and the differentiation lives there. Buy it if the conversations are how you sell or support something else — in which case the six months are the real price, not the subscription.
What does Convarza AI cost?
Four plans from ₹2,499 to ₹54,999 a month, with yearly billing costing ten months. No setup fee and no per-conversation charge. See pricing.
vs WhatsApp-only tools vs call-centre software vs helpdesk suites