--- title: "AI Calling Glossary: Voice AI, TRAI, DLT and DPDP Terms Explained | Vyora" description: "40 plain-language definitions for AI voice agents, outbound calling and Indian telecom compliance: TRAI, TCCCPR, DLT, DND, 160-series numbers and the DPDP Act." canonical_url: "https://www.vyora.ai/glossary" --- GLOSSARY · 40 terms # AI calling glossary for Indian businesses Plain-language definitions of the voice AI, calling and compliance terms you meet when you automate phone calls in India, from speech-to-text and barge-in to TRAI, DLT, DND and the DPDP Act. General information, not legal advice. ## Voice AI - [AI telecaller](https://www.vyora.ai/glossary/ai-telecaller) An AI telecaller is an AI voice agent that does the work of a human telecaller: it dials leads or customers, follows a script,… - [AI voice agent](https://www.vyora.ai/glossary/ai-voice-agent) An AI voice agent is software that holds a spoken phone conversation to complete a task, such as qualifying a lead, confirming… - [Barge-in](https://www.vyora.ai/glossary/barge-in) Barge-in is when a caller interrupts the AI while it is speaking, and the AI stops talking and listens. - [Conversational AI](https://www.vyora.ai/glossary/conversational-ai) Conversational AI is the family of technologies that let software hold natural back-and-forth conversations by text or voice,… - [Knowledge base (RAG)](https://www.vyora.ai/glossary/knowledge-base-rag) A knowledge base gives an AI agent your own documents to answer from; retrieval-augmented generation (RAG) is the technique… - [Post-call analysis](https://www.vyora.ai/glossary/post-call-analysis) Post-call analysis automatically extracts a summary, outcome and structured details from each call transcript. - [Speech-to-text (STT / ASR)](https://www.vyora.ai/glossary/speech-to-text) Speech-to-text, also called automatic speech recognition (ASR), converts spoken audio into written text so software can… - [Text-to-speech (TTS)](https://www.vyora.ai/glossary/text-to-speech) Text-to-speech turns written text into spoken audio, the voice a caller hears from an AI voice agent. - [Voice AI latency](https://www.vyora.ai/glossary/voice-ai-latency) Voice AI latency is the delay between a caller finishing a sentence and the AI starting its reply. - [Voice bot](https://www.vyora.ai/glossary/voice-bot) A voice bot is an automated system that talks to callers; older voice bots follow fixed scripts and keywords, newer ones use… - [Voice cloning](https://www.vyora.ai/glossary/voice-cloning) Voice cloning creates a synthetic voice that sounds like a specific real person, built from recordings of their speech. - [Voicemail detection](https://www.vyora.ai/glossary/voicemail-detection) Voicemail detection recognises when an outbound call has reached an answering machine instead of a person, so the system can… ## Calling - [Average handle time (AHT)](https://www.vyora.ai/glossary/average-handle-time) Average handle time is the average length of a call from start to finish, including any follow-up work. - [Call disposition](https://www.vyora.ai/glossary/call-disposition) A call disposition is the recorded outcome of a call, such as interested, call back later, not interested, wrong number or… - [Connect rate](https://www.vyora.ai/glossary/connect-rate) Connect rate is the share of dialled calls that reach a live person. - [Inbound calling](https://www.vyora.ai/glossary/inbound-calling) Inbound calling is when customers phone a business, for support, bookings or enquiries, and the business answers. - [IVR (Interactive Voice Response)](https://www.vyora.ai/glossary/ivr) IVR is a phone system that lets callers navigate a menu by pressing keys or saying short commands, such as "Press 1 for sales". - [Outbound calling](https://www.vyora.ai/glossary/outbound-calling) Outbound calling is when a business phones its leads or customers, as opposed to waiting for them to call in. - [Predictive dialer](https://www.vyora.ai/glossary/predictive-dialer) A predictive dialer automatically dials many numbers at once and connects an answered call to a free human agent, using a… - [SIP trunk](https://www.vyora.ai/glossary/sip-trunk) A SIP trunk is an internet-based connection that carries voice calls between a company's phone system and the public telephone… - [Warm transfer](https://www.vyora.ai/glossary/warm-transfer) A warm transfer hands a live call from the AI to a human while briefing the human first, so the caller does not have to repeat… ## India - [Code-switching](https://www.vyora.ai/glossary/code-switching) Code-switching is when a speaker moves between two or more languages during a conversation, common across India. - [Hinglish](https://www.vyora.ai/glossary/hinglish) Hinglish is the everyday mix of Hindi and English used in India, often switching language within a single sentence. ## Sales - [Lead qualification](https://www.vyora.ai/glossary/lead-qualification) Lead qualification is the process of checking whether a lead is a good fit and ready to buy, usually by asking a few key… - [Speed to lead](https://www.vyora.ai/glossary/speed-to-lead) Speed to lead is how quickly a business contacts a new enquiry after it arrives, and research consistently finds that faster… ## E-commerce - [COD confirmation call](https://www.vyora.ai/glossary/cod-confirmation-call) A COD confirmation call phones a cash-on-delivery customer after they place an order to confirm the order, address and intent… ## India compliance - [140-series numbers](https://www.vyora.ai/glossary/140-series-numbers) 140-series numbers are the range TRAI designates for promotional telemarketing calls. - [160-series numbers](https://www.vyora.ai/glossary/160-series-numbers) 160-series numbers are the number range TRAI assigns to businesses for service and transactional calls, so customers can… - [Call recording consent](https://www.vyora.ai/glossary/call-recording-consent) Call recording consent is the caller's agreement to have a call recorded, usually obtained by telling them at the start of the… - [Calling hours in India](https://www.vyora.ai/glossary/calling-hours-india) Under TRAI's rules, promotional calls in India may only be made between 9 AM and 9 PM. - [Consent for AI calls](https://www.vyora.ai/glossary/consent-for-ai-calls) Consent for AI calls means holding a record that the person agreed to be contacted, for the purpose you are calling about. - [Data residency](https://www.vyora.ai/glossary/data-residency) Data residency is the requirement or choice to store data inside a particular country, here India. - [DLT registration](https://www.vyora.ai/glossary/dlt-registration) DLT registration is the mandatory enrolment of a business, its sender headers and its message templates on a TRAI-approved… - [DND (Do Not Disturb) registry](https://www.vyora.ai/glossary/dnd-registry) The DND registry is India's national list of customers who have chosen not to receive promotional calls and messages. - [DPDP Act 2023](https://www.vyora.ai/glossary/dpdp-act) The Digital Personal Data Protection Act, 2023 is India's data-protection law, setting rules for how organisations collect,… - [TCCCPR 2018](https://www.vyora.ai/glossary/tcccpr) TCCCPR, the Telecom Commercial Communications Customer Preference Regulations 2018, is TRAI's rulebook for commercial calls… - [TRAI (Telecom Regulatory Authority of India)](https://www.vyora.ai/glossary/trai) TRAI is India's telecom regulator; it sets the rules for commercial calls and messages, including who may call, from which… ## Integrations - [CRM integration](https://www.vyora.ai/glossary/crm-integration) A CRM integration connects your calling platform to your customer-relationship software so leads flow in and call outcomes… - [Webhook](https://www.vyora.ai/glossary/webhook) A webhook is an automatic message one system sends to another over the web when something happens, such as a call finishing. - [WhatsApp Business API](https://www.vyora.ai/glossary/whatsapp-business-api) The WhatsApp Business API lets companies send and receive WhatsApp messages at scale through approved providers, using… We use cookies to improve your experience. 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