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Glossary

Auto dialer

An auto dialer is software that dials phone numbers from a list automatically, so nobody has to key them in. Basic auto dialers connect answered calls to a waiting telecaller or play a recording. AI-based dialers hand each answered call to an AI voice agent that holds the conversation itself.

Types of auto dialer

  • Preview dialer. The telecaller sees the contact first, then clicks to call.
  • Power or progressive dialer. Rings the next number as soon as a telecaller is free.
  • Predictive dialer. Rings several numbers per telecaller, betting on how many will answer. When more people pick up than there are free telecallers, someone hears silence and the call drops.
  • AI dialer. Every answered call goes straight to an AI voice agent, so nobody waits for a free person.

How it works on Indian calls

An education company uploads a list of enquiries from an admissions fair. The dialer rings each number inside the hours set, skips anyone who has asked not to be called, retries people who didn't pick up and logs an outcome for every call.

India's rules shape all of this. TRAI treats calls placed by software or an automated platform as automated (A2P) calls, which must be declared to the telecom operator. Number series matter too: the 140 series is for promotional calls, and the 1600 or 1601 series for service and transactional calls, depending on the sector. Promotional calls also have to respect the DND register (NCPR).

Why it matters

A classic dialer only speeds up dialling; someone still has to talk. Predictive dialers can also leave people on silent, dropped calls, which annoys them and invites complaints. An AI agent removes the wait for a free telecaller.

How Kallix handles it

Kallix campaigns do the dialling. Upload contacts as a CSV or push them by API, set IST calling windows, retries with gaps and parallel lines, then start. Numbers are checked against the DND register before a campaign dials, do-not-call contacts are excluded, and Kallix declares automated calling for the numbers it provides through Vobiz.

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Common questions.

More on the FAQ page, or write to us.

A predictive dialer rings ahead of your telecallers and connects answered calls to whoever is free. An AI dialer gives every answered call to an AI voice agent, so nobody is left on a silent line.

Promotional calls to numbers on the DND register (NCPR) need the person's recorded consent. Kallix checks every number against the register before a campaign dials and skips DND numbers on promotional calls unless consent is recorded.

Yes. Promotional calls use 140-series numbers, and service and transactional calls use the 1600 or 1601 series, depending on the sector. Kallix provides these numbers through Vobiz, alongside regional numbers for inbound lines.

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