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Infobip Voice API
London, United Kingdom
What it is
Infobip Voice API provides voice tools for adding calls to mobile and web applications, including calls to landlines and mobile phones. Developers can use Calls API to build inbound or outbound applications and control calls over PSTN, WebRTC, or SIP. Voice functions include programmable calls, voice messages, IVR with DTMF collection, click-to-call, number masking, and browser-based WebRTC. Speech tools offer text-to-speech in more than 100 languages and accents, along with speech capture and transcription. Voice can be used with Infobip Inbox, Customer Profiles, Chatbots, and Journeys. SIP trunking connects a PBX or SBC to Infobip, and inbound calls can use static or dynamic routing rules. Voice calling is also documented through WhatsApp and Viber, including WhatsApp Business Calling with business verification. Native SDKs are supported for JavaScript, Android, and iOS. There is no free plan; a 60-day trial has call quotas, verified-mobile-number restrictions for phone calls, and a five-minute limit per trial phone call. Trial availability is geographically limited, and U.S. calls require Support to enable them.
For and against
For
- Supports inbound and outbound calls
- Includes PSTN, WebRTC, and SIP call control
- Text-to-speech supports more than 100 languages and accents
- Native SDKs support JavaScript, Android, and iOS
Against
- No free plan is available
- Trial phone calls require verified mobile numbers
- Each trial phone call is limited to five minutes
- Trial voice use is limited by country
The verdict
Infobip Voice API covers programmable calling, speech tools, and several telephony connections. Its trial has defined usage and geographic restrictions, and recording or conferencing requires add-ons.
Who it suits
The Calls API is aimed at developers building voice experiences for mobile or web applications. Infobip also offers voice through a no-code web interface for business users.
Plans and prices
Voice add-ons
Voice and video recording · Other listed add-ons have separate usage prices
Read 30 Sep 2026 · infobip.com
Voice pay-as-you-go
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
On the record
- Calls API
- Calls API lets developers build inbound and outbound call applications and control calls across PSTN, WebRTC, or SIP.infobip.com · read 30 Sep 2026
- Company history
- Infobip's company page records its establishment in 2006 and describes London as its headquarters during its 2009 international expansion.infobip.com · read 30 Sep 2026
- Geographic limits
- Trial voice use is limited to listed countries, and U.S. calls require contacting Support to enable them.infobip.com · read 30 Sep 2026
- Integrations
- Voice can be used with Infobip Inbox, Customer Profiles, Chatbots, and Journeys.infobip.com · read 30 Sep 2026
- Intended users
- Calls API is developer-oriented and API-only, while Infobip also offers voice in a no-code web interface for business users.infobip.com · read 30 Sep 2026
- Messaging channels
- Infobip documents voice calling through WhatsApp and Viber, including WhatsApp Business Calling with business verification.infobip.com · read 30 Sep 2026
- Product scope
- Infobip Voice provides customizable voice tools for mobile and web applications, including calls to landlines and mobile phones.infobip.com · read 30 Sep 2026
- 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.infobip.com · read 30 Sep 2026
- SDKs
- The pricing page says native SDKs are supported for JavaScript, Android, and iOS, including standalone use or backend integration through Calls API.infobip.com · read 30 Sep 2026
- 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.infobip.com · read 30 Sep 2026
- Speech
- Text-to-speech supports more than 100 languages and accents, and speech capture and transcription are available through voice APIs.infobip.com · read 30 Sep 2026
- Support
- Infobip directs users to its Support Center for troubleshooting guides and FAQs.infobip.com · read 30 Sep 2026
- Telephony connectivity
- SIP trunking connects a PBX or SBC to Infobip, and call routing supports static and dynamic inbound rules.infobip.com · read 30 Sep 2026
- 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.infobip.com · read 30 Sep 2026
- Voice features
- The voice APIs include programmable calls, voice messages, IVR with DTMF collection, click-to-call, number masking, and browser-based WebRTC.infobip.com · read 30 Sep 2026
