Infobip Voice API vs Plivo Voice API
Infobip Voice API
infobip.com
Plivo Voice API
plivo.comSide by side
| Figure | Infobip Voice API | Plivo Voice API |
|---|---|---|
| Price from | — | $0.01/mo |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Plans published | 2 | 3 |
| Spec score · Voice APIs | 7.9 (#11) | 8.1 (#8) |
| Spec score · Communications Platforms as a Service | 7.9 (#10) | 8.1 (#9) |
| Founded | 2006 | 2011 |
| Headquarters | London, United Kingdom | Austin, Texas, USA |
| Integrations | Voice can be used with Infobip Inbox, Customer Profiles, Chatbots, and Journeys. | Listed integrations include Microsoft Power Automate, Zapier, n8n, Pipedream, Tray, and EngageBay for voice and other Plivo communication workflows. |
| Intended users | Calls API is developer-oriented and API-only, while Infobip also offers voice in a no-code web interface for business users. | Plivo describes its APIs as enabling web and mobile apps to integrate messaging and voice functionality and engage customers programmatically. |
| Support | Infobip directs users to its Support Center for troubleshooting guides and FAQs. | Plivo says it responds to priority 1 business-critical incidents around the clock, 365 days a year. |
| Voice features | The voice APIs include programmable calls, voice messages, IVR with DTMF collection, click-to-call, number masking, and browser-based WebRTC. | Features include call queueing, conferences, text to speech, audio playback, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID. |
Plans
Infobip Voice API
- Voice add-onsPriced on request
- Voice pay-as-you-goPriced on request
Plivo Voice API
- Pay as you goPriced on request
- Voice API pay as you go$0.01 a month
- Enterprise$1,000 a month
In their own words
Infobip Voice API
Infobip Voice API provides programmable voice tools for mobile and web applications, including calls to landlines and mobile phones. Developers can use Calls API to build inbound and outbound applications and control calls over PSTN, WebRTC, or SIP. Available functions include programmable calls, voice messages, IVR with DTMF collection, click-to-call, number masking, and browser-based WebRTC. SIP trunking connects a PBX or SBC to Infobip, with static and dynamic inbound call-routing rules. Voice can also be used with Infobip Inbox, Customer Profiles, Chatbots, and Journeys, and calling is documented for WhatsApp and Viber. Speech tools support text-to-speech in more than 100 languages and accents, as well as speech capture and transcription. Native SDKs are supported for JavaScript, Android, and iOS. The service has no free plan, but offers a 60-day trial with limits: 15 outgoing calls or voice messages, 15 incoming calls, and 100 WebRTC calls. Trial phone calls require verified mobile numbers and are capped at five minutes. Recording and conferencing are add-ons; conferencing is required for calls with three or more participants.
Plivo Voice API
Plivo Voice API lets web and mobile applications make and receive calls programmatically, play audio, record conversations, and build interactive voice applications. It connects calls across PSTN, SIP, and WebRTC endpoints. Features include queues, conferences, text to speech, dual-channel recording, DTMF input, speech recognition, answering machine detection, voicemail transcription, and custom caller ID. Its Audio Streams API sends raw audio from active calls over WebSocket for transcription, voice AI, analytics, or custom processing. Plivo lists SDKs for Python, Node.js, Ruby, PHP, Java,.NET, and Go, along with integrations including Zapier, n8n, Pipedream, Tray, EngageBay, and Microsoft Power Automate. The service is listed for Android, iOS, web, and API. The Voice API pay-as-you-go plan is listed at $0.01 a month; call routes and features have separate rates. Calls are billed in 60-second increments. Pay-as-you-go accounts receive $10 in free credits without a credit card. Plivo was founded in 2011 and is headquartered in Austin, Texas.