Bulk Voice Call Service Provider for Every Kind of Campaign

The challenge

Why most bulk voice campaigns underperform

• 1
  Wrong call typeA one-way message is used where people needed to ask a question, or a long conversation is used where a ten-second reminder would do.
• 2
  Scripts that rambleThe caller hears a long greeting and company history before the actual point, and hangs up before the offer or the date arrives.
• 3
  Rules treated as fine printPromotional calls go out at the wrong hour or to DND numbers, which risks complaints and blocked numbers.
• 4
  No usable reportThe campaign ends with a total of calls dialled and nothing about who listened, who pressed a key or who wants a callback.

Choosing a bulk voice call service provider is less about who can dial the most numbers and more about who helps you send the right kind of call to the right list at the right time. A payment reminder, a festive offer and an admission enquiry follow-up are three very different calls, and treating them the same way wastes money.

Some campaigns only need people to hear one clear message. Others need the listener to confirm, choose, ask or talk to a person. The call type you pick decides the script, the length of each call, the cost in seconds and what the report can tell you afterwards.

Troika Tech runs bulk calling as a fully managed service. Our team plans the campaign with you, writes and tests the script, configures the AI voice, sets timing and retries, and then shares recordings, captured leads and a campaign report on a web dashboard.

We are honest about limits too. Not everyone picks up. DND rules apply to promotional calls. A stale or unconsented list will cost credits and return little. This page explains how each type of bulk voice call works so you can plan with clear expectations.

01

Three kinds of bulk voice calls and when to use each

Every bulk voice campaign we run falls into one of three broad types. They can be mixed within one programme, for example a broadcast for a large list followed by conversation calls to the people who showed interest, but each call has one job.

A fixed-message voice broadcast plays an approved recording or a consistent AI-voiced message to every number on the list. It is the simplest and usually the shortest call. Use it when the listener only needs information: a school holiday notice, a store opening, a change in office timings, a reminder that a sale starts tomorrow. There is nothing to answer, so the message must be complete on its own.

A conversational AI call is two-way. The AI voice agent speaks, listens to the reply and responds within the script you approved. It can answer supported questions, confirm details, collect a name or preferred time, and book an appointment or site visit. Use it when the outcome depends on what the person says, such as confirming a clinic appointment or asking whether a past enquiry is still interested.

A capture-and-transfer call sits between the two. The agent delivers a short message, checks interest with a simple question, captures the response and, if the person wants to talk, live-transfers the call to your sales or support team. Use it when your team should spend time only on people who said yes.

03

Use-case catalogue for a bulk voice call service

The same service covers many everyday business jobs. Below is a catalogue of common uses, with the call type that usually fits each one. These are illustrations of what the service can do, not a list of past clients.

05

Timing, retries and list quality

When a call is placed matters nearly as much as what it says. Promotional calls must stay within 9 am to 9 pm, but within that window there are better and worse hours depending on who you are calling. Business owners and dealers may be easier to reach mid-morning. Salaried customers may respond better in the early evening. Parents may be busy around school drop-off and pick-up. We plan calling windows around your audience rather than blasting the whole list at once.

Retries help reach people who were busy or did not answer the first time. A sensible retry plan places a second or third attempt at a different time of day, not straight away, and stops after a fixed number of tries so nobody feels harassed. Retries use credits, so the plan is agreed with you before launch.

List quality is the hidden cost driver. Duplicate numbers, wrong formats, numbers of people who never gave consent and very old lists all waste seconds and can lead to complaints. Before a campaign, clean the list, remove duplicates, mark DND numbers for promotional calls and separate segments by language and purpose. A smaller, clean list almost always does more than a large, messy one.

07

Billing for a bulk voice call service provider: credits and seconds

Troika Tech bills bulk voice calls through calling credits. One credit equals one second of usage, and calls are billed per second, never rounded up to a full minute. A 20-second broadcast uses 20 credits, not 60. This is why short, clear scripts save money as well as attention.

Credits are bought in volume tiers: Starter up to 10,00,000 credits, Growth from 10,00,000 credits, Business from 50,00,000 credits and Corporate from 2,00,00,000 credits. Higher tiers carry lower per-second rates. Exact rates are shared in a written quotation based on your volume and use case, and prices are subject to GST. Recharge validity is 30 days by default unless your quotation says otherwise.

The call type you choose shapes the credit budget. A broadcast to a large list uses a predictable number of seconds per connected call, because every listener hears the same message. A conversation call varies with each person: a quick confirmation may take a few seconds, while a parent asking about admission dates may stay on longer. Capture-and-transfer calls use seconds for the qualifying part and for the transferred portion, so it helps to plan for both. When we prepare your quotation, we estimate usage from the script length, the list size and the retry plan, so there are fewer surprises once the campaign is running.

A dedicated virtual number (DID) is required to run campaigns. CRM, WhatsApp, SMS, webhook and Google Sheets integrations are not part of standard retail plans; if you need them, they are reviewed and quoted separately.