Voice infrastructure, explained.

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    29 articles
    The Telephony Layer for AI Voice Agents: Connecting Vapi, Retell, ElevenLabs, LiveKit, Pipecat & More to Phone Numbers
    AI Voice Infrastructure17 min read

    The Telephony Layer for AI Voice Agents: Connecting Vapi, Retell, ElevenLabs, LiveKit, Pipecat & More to Phone Numbers

    How AI voice agent platforms connect to real phone numbers — SIP trunks, WebSocket streaming, and BYOC, with setup paths for each major platform.

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    Piyush SahooPiyush Sahoo
    15 October 2026
    Migrating to Vobiz: The Complete Telephony Switching Guide (2026)
    Buyer's Guide12 min read

    Migrating to Vobiz: The Complete Telephony Switching Guide (2026)

    What changes when you move to Vobiz from Plivo, Twilio, Exotel, or Telnyx: pricing, number porting, compliance, and a full cutover checklist.

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    Piyush SahooPiyush Sahoo
    22 September 2026
    The Call You Have to Keep, and the Data You Can't Store
    Compliance7 min read

    The Call You Have to Keep, and the Data You Can't Store

    How do you keep a call recording DPDP forces you to delete but RBI forces you to retain? Vobiz redacts PII in BFSI voice calls, live at GFF Booth K25.

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    Piyush SahooPiyush Sahoo
    3 September 2026
    Live Automated eKYC, TRAI/DLT Compliance & DPDP Architecture at Global Fintech Fest 2026
    Compliance6 min read

    Live Automated eKYC, TRAI/DLT Compliance & DPDP Architecture at Global Fintech Fest 2026

    Live demo at GFF Booth K25: automated Indian business verification, automated TRAI/DLT registration, and DPDP-ready call logs in under 10 minutes.

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    Piyush SahooPiyush Sahoo
    28 August 2026
    How to Stop Your AI Voice Agent From Getting Flagged as Spam Likely in India
    Best Practices8 min read

    How to Stop Your AI Voice Agent From Getting Flagged as Spam Likely in India

    Every outbound AI voice team in India hits the same wall: 30% answer rates because carrier algorithms and Truecaller flag their numbers as spam. Here is how to fix it.

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    Piyush SahooPiyush Sahoo
    14 August 2026
    Vobiz Developer Guide: From Signup to Production Call (2026)
    Developer's Guides11 min read

    Vobiz Developer Guide: From Signup to Production Call (2026)

    Set up the Vobiz telephony API from signup to your first production call — auth, SIP trunking, AI voice integrations, SDKs, and MCP tooling.

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    Piyush SahooPiyush Sahoo
    31 July 2026
    Web SDK & WebRTC Primer: When Does Voice AI Need a Phone Number? (2026)
    Developer's Guides9 min read

    Web SDK & WebRTC Primer: When Does Voice AI Need a Phone Number? (2026)

    Whether or not your voice AI product needs a phone number depends on one thing: does the interaction have to outlive a single browser session. Here's how WebRTC, SIP, and Web SDKs fit together.

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    Piyush SahooPiyush Sahoo
    18 July 2026
    Vobiz vs Exotel: A Buyer's Guide to Telephony Infrastructure for Voice AI (2026)
    Buyer's Guide12 min read

    Vobiz vs Exotel: A Buyer's Guide to Telephony Infrastructure for Voice AI (2026)

    Comparing Vobiz vs Exotel for voice AI telephony? See how they stack up on latency, coverage, SIP trunking, AI integrations, and developer experience — with source-backed data.

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    11 July 2026
    The Complete Guide to Voice AI Number Health
    Infrastructure15 min read

    The Complete Guide to Voice AI Number Health

    How to catch a degrading number before it's flagged - signals to watch, safe daily volume limits, spam recovery, compliance across major markets, and more.

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    9 July 2026
    Vobiz vs Plivo: Which Telephony Platform Fits Voice AI Agents?
    Buyer's Guide9 min read

    Vobiz vs Plivo: Which Telephony Platform Fits Voice AI Agents?

    Compare Vobiz and Plivo across India telecom compliance, automated eKYC, sub-80ms latency, SIP trunking, WhatsApp Business, and developer experience for Voice AI.

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    Piyush SahooPiyush Sahoo
    3 July 2026
    RTP Jitter Buffering & Packet Loss Concealment in Voice AI Pipelines
    Developer's Guides10 min read

    RTP Jitter Buffering & Packet Loss Concealment in Voice AI Pipelines

    How carrier-grade voice platforms manage RTP jitter with adaptive buffering, packet loss concealment, FEC, and smart routing for smooth Voice AI calls.

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    Piyush SahooPiyush Sahoo
    25 June 2026
    How to Build a Production-Ready Outbound AI Calling Campaign on Vobiz in Under 10 Minutes
    Developer's Guides8 min read

    How to Build a Production-Ready Outbound AI Calling Campaign on Vobiz in Under 10 Minutes

    Step-by-step guide to launching a production-ready outbound AI calling campaign on Vobiz — provision DIDs, configure AMD, write call flow XML, and handle hangup webhooks for CRM sync. Real code included.

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    Ishani SinghIshani Singh
    23 June 2026
    Toll-Free vs Local vs Mobile Numbers
    Telephony Infrastructure8 min read

    Toll-Free vs Local vs Mobile Numbers

    Toll-free vs local vs mobile numbers compared: US prefixes, area codes, A2P/10DLC, SMS deliverability, cost, caller perception, and when to use each type.

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    Piyush SahooPiyush Sahoo
    June 19, 2026
    What is a DID number?
    Telephony Infrastructure8 min read

    What is a DID number?

    A DID number is a phone number that routes straight to a specific endpoint. How direct inward dialing works, DID types, porting, and DID vs virtual numbers.

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    Piyush SahooPiyush Sahoo
    June 18, 2026
    What Latency, Drop Rates, and Audio Failures Are Costing Your Business
    Buyer's Guide10 min read

    What Latency, Drop Rates, and Audio Failures Are Costing Your Business

    Learn how VoIP latency, packet drop rates, and audio failures silently erode revenue. Understand the thresholds, the numbers, and how telephony infrastructure quality determines business outcomes.

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    Ishani SinghIshani Singh
    17 June 2026
    What is a virtual phone number?
    Telephony Infrastructure8 min read

    What is a virtual phone number?

    A virtual phone number is a real number not tied to a SIM or copper line. How it works, the types, virtual vs DID vs landline, and the voice-AI angle.

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    Piyush SahooPiyush Sahoo
    June 17, 2026
    What is an IVR?
    Product & Features8 min read

    What is an IVR?

    An IVR is the automated phone menu that greets and routes callers. How IVR works (DTMF, speech, conversational AI), use cases, benefits, and how to build one.

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    Piyush SahooPiyush Sahoo
    June 10, 2026
    What is VoIP?
    Telephony Infrastructure8 min read

    What is VoIP?

    VoIP turns phone calls into internet data. How it works (codecs, SIP, RTP), the types of VoIP, equipment, bandwidth, call quality, costs, and setup.

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    Piyush SahooPiyush Sahoo
    June 10, 2026
    SIP vs VoIP: What's the Difference?
    Telephony Infrastructure8 min read

    SIP vs VoIP: What's the Difference?

    SIP and VoIP aren't the same, VoIP is the category, SIP is the protocol. The differences, SIP vs VoIP phones, hosted vs self-managed, and which to choose.

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    Ishani SinghIshani Singh
    June 10, 2026
    The Telephony Layer Playbook for Voice AI Teams
    AI Voice Infrastructure6 min read

    The Telephony Layer Playbook for Voice AI Teams

    Most voice AI failures don't start in the model. They start in the telephony layer. Download our 8-page playbook covering the four-layer call anatomy, 7 things that break voice AI, and a 5-step setup flow.

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    Piyush SahooPiyush Sahoo
    9 June 2026
    How can a voice API give customers a better experience?
    Telephony Infrastructure8 min read

    How can a voice API give customers a better experience?

    Learn what a voice API is and how it streamlines business communication with call routing, IVR, and more - plus transparent INR pricing with Vobiz.

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    Ishani SinghIshani Singh
    June 9, 2026
    How do landline numbers function?
    Telephony Infrastructure8 min read

    How do landline numbers function?

    Understand what a landline number is, its role, types, and reliable benefits. Learn about modern VoIP alternatives and their advantages.

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    Ishani SinghIshani Singh
    June 9, 2026
    Call Center Optimization with AI: The Complete Guide
    Product & Features8 min read

    Call Center Optimization with AI: The Complete Guide

    Call center optimization that lifts efficiency and CSAT without burning out agents - key metrics, a 5-step plan, and AI building blocks like IVR and voice agents.

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    Piyush SahooPiyush Sahoo
    June 9, 2026
    Sub-80ms RTT Voice Infrastructure: How Vobiz Delivers Production-Ready Low Latency for AI Agents (2026)
    AI Voice Infrastructure10 min read

    Sub-80ms RTT Voice Infrastructure: How Vobiz Delivers Production-Ready Low Latency for AI Agents (2026)

    Most voice AI stacks settle for 1,500–2,500ms. Vobiz targets sub-80ms average RTT on the carrier leg. Here's the exact infrastructure stack that makes it possible — and why it matters at scale.

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    Piyush SahooPiyush Sahoo
    4 June 2026
    Why India's AI Voice Boom Will Be Won at the Infrastructure Layer, Not the Model Layer
    AI Voice Infrastructure10 min read

    Why India's AI Voice Boom Will Be Won at the Infrastructure Layer, Not the Model Layer

    India's AI voice boom is accelerating — but the real competitive moat isn't the LLM. It's carrier interconnects, TRAI compliance, and sub-100ms telephony infrastructure. Here's why.

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    Ishani SinghIshani Singh
    3 June 2026
    How an Outbound Campaign Manager Actually Works (2026 Guide)
    Product & Features12 min read

    How an Outbound Campaign Manager Actually Works (2026 Guide)

    Learn how an outbound campaign manager dials at scale — number rotation, daily caps, cooldowns, retry policies, and how to avoid Spam Likely labels. A practical guide for builders.

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    Piyush SahooPiyush Sahoo
    22 May 2026
    Why Your Voice AI Sounds Slow (It's Not the Model - It's the Pipes)
    AI Voice Infrastructure8 min read

    Why Your Voice AI Sounds Slow (It's Not the Model - It's the Pipes)

    Your voice AI model isn't the bottleneck - legacy PSTN routing is. Learn how multi-hop SIP architecture adds 1.4–1.7s of latency and what AI-native telephony infrastructure does differently.

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    Ishani SinghIshani Singh
    12 May 2026
    Vobiz Raises $1M Seed Round to Build the Telephony Infrastructure Voice AI Actually Needs
    Company Announcement7 min read

    Vobiz Raises $1M Seed Round to Build the Telephony Infrastructure Voice AI Actually Needs

    Vobiz has raised $1M in seed funding led by Piper Serica VC Fund. Here's the infrastructure problem we're solving, what we're building next, and why now.

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    Ishani SinghIshani Singh
    5 May 2026
    Architecting Ultra-Low Latency Voice AI Agents in India: A Deep Dive into the Vobiz and Vapi Integration
    Developer's Guides5 min read

    Architecting Ultra-Low Latency Voice AI Agents in India: A Deep Dive into the Vobiz and Vapi Integration

    A comprehensive technical guide on connecting Vapi's Voice AI orchestration platform with Vobiz's SIP trunking to deploy zero-latency conversational agents on Indian phone numbers.

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    Piyush SahooPiyush Sahoo
    26 March 2026