> ## Documentation Index > Fetch the complete documentation index at: https://www.vobiz.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Twilio Alternative: Which Providers Are Better for India & AI? > Looking for a Twilio alternative? Twilio costs $0.014–0.022/min in USD, doesn't support 140-series numbers or INR billing, and isn't optimised for India. Here are the best alternatives for different use cases — including AI voice agents, CPaaS, and India-first businesses. *November 2026 · Vobiz Team* **Twilio is the dominant name in programmable voice and SMS, but it was built for the global (US-first) market — which creates real problems for India-focused businesses and high-volume AI voice deployments.** USD billing, no TRAI-compliant 140-series numbers, and India termination rates around \$0.022/min (\~₹1.83/min) make Twilio expensive and partially non-compliant for Indian use cases. Here's a structured look at the alternatives. > [!NOTE] > > **Key takeaways** > > * Twilio's main limitations for India: USD billing, no 140-series number support, \~₹1.83/min India rate vs ₹0.45/min on Vobiz > * For India-first use cases, Vobiz is the closest like-for-like API alternative with full Indian market support > * For global AI voice (US/EU focus), Telnyx is the strongest Twilio alternative on price and features > * Switching from Twilio is straightforward — Vobiz XML closely mirrors TwiML syntax > * Open-source (Asterisk/FreeSWITCH + local carrier) is the cheapest option but requires significant engineering ## Why Teams Look for a Twilio Alternative Twilio's pricing and feature set works well for US/EU SaaS companies with moderate voice volume. The economics shift when you scale, operate in India, or run AI voice agents: **Pricing at scale**: Twilio's India termination runs ~~$0.022/min. At 1 million minutes/month, that's $22,000 (~~₹18.3 lakh). Vobiz at ₹0.45/min = ₹4.5 lakh for the same volume — a saving of ₹13.8 lakh/month. **India compliance**: TRAI requires business-to-consumer outbound calls to use 140-series phone numbers. Twilio does not support 140-series numbers. Indian businesses using Twilio for outbound calling are either non-compliant or routing through workarounds. **INR billing**: Twilio invoices in USD. For Indian companies, this creates forex exposure, complicates GST input credit, and adds bank conversion fees. **Feature gaps**: Twilio doesn't support some India-specific features like NDNC/DND real-time checking, local number health monitoring, and India-routed RTP media. ## Twilio Alternative Comparison | Provider | Best for | India Numbers | India Rate | Currency | TRAI 140-series | API Quality | | - | - | - | - | - | - | - | | **Vobiz** | India-first businesses, AI agents | ✅ Full | ₹0.45/min | INR | ✅ Yes | Full REST API | | **Telnyx** | Global, US/EU AI agents | ✅ Limited | \~₹1.50/min | USD | ❌ No | Full REST API | | **Plivo** | India + global mid-tier | ✅ | \~₹0.95/min | USD | Partial | REST API | | **Vonage** | Enterprise, EU data residency | ✅ | \~₹1.67/min | USD | ❌ No | REST API | | **Exotel** | India SMBs, no-code | ✅ | ₹0.60–1.20/min | INR | ✅ Yes | Limited API | | **Sinch** | Global SMS + voice | ✅ | \~₹1.25/min | USD | Partial | REST API | | **Asterisk/FreeSWITCH** | Self-hosted, highest control | DIY | ₹0.20–0.40/min (carrier) | INR | DIY | No API | ## Vobiz: The India-First Twilio Alternative Vobiz is the most direct API-compatible alternative to Twilio for Indian businesses. The API structure is comparable — make calls, handle webhooks, return XML to control call flow — with meaningful advantages for Indian deployments: **Pricing**: ₹0.45/min outbound voice, ₹0.20/min inbound — roughly 75% cheaper than Twilio for India termination. **Compliance**: 140-series business numbers with TRAI-compliant calling, NDNC/DND filtering, DLT registration support. **Billing**: INR invoicing with GST — no forex exposure, full input credit eligibility. **AI-ready**: Vobiz's SIP trunking is designed to connect AI voice agent platforms (Retell AI, Vapi, ElevenLabs, LiveKit, Deepgram) directly. No middleware needed. **Migration**: The [Twilio to Vobiz migration guide](https://www.vobiz.ai/docs/compare/twilio/overview.md) maps every TwiML verb to its Vobiz XML equivalent and covers API endpoint differences. ``` Twilio TwiML → Vobiz XML → → → → → → → ``` Most Twilio XML is structurally identical to Vobiz XML. The main differences are attribute names and webhook payload field names. ## Telnyx: The Best Twilio Alternative for Global AI Voice For teams primarily serving the US or EU market, Telnyx offers the strongest alternative to Twilio. Its elastic SIP trunking is well-suited to AI voice agents, it has competitive per-minute rates in USD, and its API is comprehensive. Telnyx's main limitations for India: USD billing, limited 140-series support, and pricing that doesn't beat Vobiz on India termination. For India-focused AI deployments, Telnyx + USD billing vs Vobiz + INR billing tips decisively toward Vobiz. ## Open Source: Asterisk and FreeSWITCH For teams with significant engineering capacity, running your own PBX (Asterisk or FreeSWITCH) paired with a local Indian carrier gives the highest control and lowest per-minute cost (₹0.20–0.40/min). The tradeoffs: * **Engineering overhead**: Configure, maintain, and scale the PBX yourself * **No managed API**: Build your own call management, webhook delivery, and recording infrastructure * **Reliability**: Self-hosted reliability vs a managed provider's SLA * **Number provisioning**: Manual number ordering with the carrier This approach makes sense for very high-volume businesses (10M+ minutes/month) where even small per-minute savings are significant, and where a dedicated telecom engineering team is in place. ## How to Switch from Twilio **Step 1: Audit your Twilio usage** Pull your CDRs and identify: which voice features you use (make-call, webhooks, TwiML), which numbers, which SMS routes, and your monthly spend. This becomes the migration checklist. **Step 2: Create a parallel account** Create a Vobiz account, buy equivalent numbers, and test your existing TwiML against the Vobiz XML endpoint. Most TwiML works without changes after updating the XML namespace. **Step 3: Port or re-provision numbers** For India numbers, re-provisioning is usually faster than porting. Buy new Vobiz numbers, update them in your app, and cancel the Twilio numbers once traffic has migrated. **Step 4: Update webhooks and authentication** Vobiz authentication uses `X-Auth-Token` header vs Twilio's Basic Auth. Webhook payloads have different field names. Update your backend handlers to read the new field names. **Step 5: Run parallel for 2 weeks** Route a small percentage of traffic through Vobiz while keeping Twilio live. Monitor CDRs, call quality metrics, and webhook delivery rate before cutting over fully. See the full [Twilio to Vobiz migration guide](https://www.vobiz.ai/docs/compare/twilio/overview.md) for detailed endpoint mapping, code snippets, and a cutover checklist. ## Cost Comparison: Twilio vs Vobiz at Scale | Volume (minutes/month) | Twilio cost (\~₹1.83/min) | Vobiz cost (₹0.45/min) | Monthly saving | | - | - | - | - | | 10,000 | ₹18,300 | ₹4,500 | ₹13,800 | | 100,000 | ₹1,83,000 | ₹45,000 | ₹1,38,000 | | 500,000 | ₹9,15,000 | ₹2,25,000 | ₹6,90,000 | | 1,000,000 | ₹18,30,000 | ₹4,50,000 | ₹13,80,000 | *Estimates based on India termination rates. Actual rates depend on destination, number type, and volume discounts. Contact Vobiz sales for high-volume pricing.* ## Next Steps * [Create a Vobiz account](https://console.vobiz.ai/auth/signup) — free to sign up, pay only for usage * [Read the full Twilio vs Vobiz comparison](https://www.vobiz.ai/docs/compare/vobiz-vs-twilio.md) for feature-by-feature breakdown * [Follow the Twilio migration guide](https://www.vobiz.ai/docs/compare/twilio/overview.md) for step-by-step porting instructions * [Check the Twilio code snippets](https://www.vobiz.ai/docs/compare/twilio/code-snippets/answer-calls.md) for API equivalent examples This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.