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Infobip Voice API

infobip.com

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Spec score 7.9 #11 of 52 in Voice APIs

What it is

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.

Spec sheet

Intended users
Calls API is developer-oriented and API-only, while Infobip also offers voice in a no-code web interface for business users.Read 30 Sep 2026 · infobip.com
Integrations
Voice can be used with Infobip Inbox, Customer Profiles, Chatbots, and Journeys.Read 30 Sep 2026 · infobip.com
Support
Infobip directs users to its Support Center for troubleshooting guides and FAQs.Read 30 Sep 2026 · infobip.com
Headquarters
London, United KingdomRead 28 Sep 2026 · infobip.com
Founded
2006Read 28 Sep 2026 · infobip.com
Calls API
Calls API lets developers build inbound and outbound call applications and control calls across PSTN, WebRTC, or SIP.Read 30 Sep 2026 · infobip.com
Company history
Infobip's company page records its establishment in 2006 and describes London as its headquarters during its 2009 international expansion.Read 30 Sep 2026 · infobip.com
Geographic limits
Trial voice use is limited to listed countries, and U.S. calls require contacting Support to enable them.Read 30 Sep 2026 · infobip.com
Messaging channels
Infobip documents voice calling through WhatsApp and Viber, including WhatsApp Business Calling with business verification.Read 30 Sep 2026 · infobip.com
Product scope
Infobip Voice provides customizable voice tools for mobile and web applications, including calls to landlines and mobile phones.Read 30 Sep 2026 · infobip.com
Recording and conferencing
Recording, recording storage, video composition, and conferencing are add-ons, and conferencing is required for multi-party calls with three or more participants.Read 30 Sep 2026 · infobip.com
SDKs
The pricing page says native SDKs are supported for JavaScript, Android, and iOS, including standalone use or backend integration through Calls API.Read 30 Sep 2026 · infobip.com
Security and HIPAA
The dedicated HIPAA-eligible voice configuration supports U.S.-originating and U.S.-terminating SIP trunk calls over HTTPS, with no recording or transcription in that flow.Read 30 Sep 2026 · infobip.com
Speech
Text-to-speech supports more than 100 languages and accents, and speech capture and transcription are available through voice APIs.Read 30 Sep 2026 · infobip.com
Telephony connectivity
SIP trunking connects a PBX or SBC to Infobip, and call routing supports static and dynamic inbound rules.Read 30 Sep 2026 · infobip.com
Trial limits
The 60-day trial includes 15 outgoing calls or voice messages, 15 incoming calls, and 100 WebRTC calls; trial phone calls are limited to verified mobile numbers and five minutes each.Read 30 Sep 2026 · infobip.com
Voice features
The voice APIs include programmable calls, voice messages, IVR with DTMF collection, click-to-call, number masking, and browser-based WebRTC.Read 30 Sep 2026 · infobip.com

Plans and prices

Voice add-ons Priced on request Voice and video recording · Other listed add-ons have separate usage prices Read 30 Sep 2026 · infobip.com
Voice pay-as-you-go Priced on request Inbound, outbound, and WebRTC rates vary by destination country, network, and applicable discounts; use calculator for rates · Voice numbers have monthly and one-time setup fees Read 30 Sep 2026 · infobip.com

Every Infobip Voice API plan and price →

Strong points and limits

Strong points

  • Inbound and outbound calling over PSTN, WebRTC, or SIP
  • IVR, click-to-call, number masking, and voice messages
  • Text-to-speech supports more than 100 languages and accents
  • Native SDKs support JavaScript, Android, and iOS

Limits

  • No free plan
  • Trial has limited call and message quotas
  • Trial phone calls require verified mobile numbers
  • Recording and conferencing are add-ons

Who it suits

The Calls API suits developers building voice applications for mobile or web. Infobip also offers voice through a no-code web interface for business users.

Verdict

Infobip Voice API offers multiple call types, speech functions, and integration paths for applications. The 60-day trial has defined quotas and phone-call restrictions, and usage pricing varies by destination and network.

Where Specifiction places it

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