What is Do Not Call / DND?
2 min read · Bolcho
DND — 'Do Not Call' — is India's national registry of phone numbers that have opted out of promotional and telemarketing calls, administered under TRAI regulations. For any business running outbound voice campaigns in India, respecting DND (and DLT registration) isn't optional — it's the law.
DND (Do Not Call) explained
Numbers on the DND registry have signalled they don't want unsolicited promotional calls or SMS. Contacting them for marketing can lead to complaints, penalties and blocked sender IDs.
Compliant outbound in India means scrubbing your call lists against the DND registry, routing through DLT/TRAI-registered infrastructure, and keeping transactional and promotional calls properly separated.
How it works
Before an outbound campaign dials, each number should be checked against the current DND registry and dropped if it's opted out. This has to happen automatically and continuously, not as a one-time manual export.
How Bolcho handles it
Bolcho handles DND scrubbing and TRAI-compliant routing for you.
Automatic DND scrubbing
Outbound lists are scrubbed against the national DND registry automatically, and calls route through TRAI-compliant KYC — so your campaigns stay compliant by default, not by manual effort.
Why it matters for voice AI in India
This is a uniquely Indian requirement that global platforms don't handle — you'd assemble it yourself on Twilio. Bolcho builds it in, which is a big part of why Indian teams don't have to become telecom-compliance experts.
See it in a real agent
Bolcho handles this for you end-to-end. Start a voice or chat agent free.
Frequently asked questions
What is the DND registry?
India's national 'Do Not Call' registry of numbers that have opted out of promotional calls and SMS, administered under TRAI rules. Calling them for marketing can bring penalties.
Do I need to scrub DND for outbound voice AI?
Yes — promotional outbound in India must respect DND and route through DLT/TRAI-registered infrastructure. Bolcho scrubs lists and routes compliantly automatically.
Does Bolcho handle TRAI compliance?
Yes — automated national DND scrubbing and TRAI-compliant KYC routing are built in, so campaigns stay compliant by default.