Mizu WebPhone
Mizu WebPhone is a SIP-based VoIP client that can be embedded in a webpage or used through a JavaScript library.
What Mizu WebPhone is
Mizu WebPhone is a SIP-based VoIP client that can be embedded in a webpage or used through a JavaScript library. It supports inbound and outbound voice calls, with options that include video, chat, SMS, conferencing, recording, hold and transfer. Its multiple SIP and media engines choose an option based on the browser, operating system and server support. The client is hosted on the buyer’s web server, so users do not need to download a runtime. Listed security measures include SIPS, TLS, DTLS and SRTP, plus end-to-end encryption for calls between WebPhone clients. MizuTech lists compatibility with SIP systems such as Asterisk, FreeSWITCH, FreePBX, Cisco, Twilio and Vonage, as well as Salesforce integration. Teams can customize and brand the interface or use the JavaScript API to add functionality. Licenses are one-time payments: Basic is $990, paid once, Advanced is $1,990, paid once, and Gold is $3,900, paid once. Licensed use is limited to the buyer’s own VoIP and web servers, within each license’s server allowance.
Good
- Embeds in webpages or works as a JavaScript SIP library
- Supports voice, video, chat, SMS and call controls
- Hosted on the buyer’s web server
- Offers multiple encryption options
- Interface can be branded and customized
Watch out
- No free plan is listed
- Basic excludes recording, presence and video
- License use is restricted to the buyer’s servers
- Some functions depend on operating system
Who it suits
It suits VoIP providers, web developers, call centers, businesses with a local PBX, and website owners that need an embeddable calling client. The available license determines client, server and feature limits.
Verdict
Mizu WebPhone combines browser-embedded calling with a JavaScript API, customization and several SIP integrations. Check license limits and feature availability before choosing a one-time plan.
Plans and prices
From Mizu WebPhone's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Basic | $990, paid once | 100 clients · 1 SIP server · desktop platforms · basic feature set · One-time payment for a perpetual lifetime license; no recurring payments. |
| Advanced | $1,990, paid once | Unlimited clients and calls · up to 4 SIP servers · desktop and mobile platforms · One-time payment for a perpetual lifetime license; no recurring payments. |
| Gold | $3,900, paid once | Unlimited clients · 10+ or more/unlimited SIP servers · desktop and mobile platforms · dedicated support · One-time payment for a perpetual lifetime license; no recurring payments. |
The facts
Each one read from Mizu WebPhone's own pages, with the date it was checked.
Where it runs
- Browser engines
- The product includes multiple SIP and media engines, and the page says it automatically selects an engine based on browser, operating system, and server support.checked 8 Oct 2026
- Supported platforms
- The support page lists Windows, Linux, Mac, Android, and iOS, while noting that some functions depend on the operating system and are not available everywhere.checked 8 Oct 2026
What it does
- Calling
- It supports inbound and outbound voice calls and lists video, chat, SMS, conferencing, recording, hold, transfer, and other call controls among its capabilities.checked 8 Oct 2026
- Customization
- The vendor says the interface can be branded and customized, and developers can use its JavaScript API to build custom functionality.checked 8 Oct 2026
- Deployment
- The webphone is a self-hosted client hosted on the buyer’s web server, with no runtime required for users to download.checked 8 Oct 2026
- Feature limits
- The Basic license excludes some advanced features such as call recording, presence, and video, while the comparison grid lists those features for Advanced and Gold.checked 8 Oct 2026
- Integrations
- The vendor lists compatibility with SIP systems including Asterisk, FreeSWITCH, FreePBX, Cisco, Twilio, and Vonage, and describes Salesforce integration.checked 8 Oct 2026
- Intended users
- The vendor recommends the product for VoIP providers, web developers and designers, call centers, businesses with a local PBX, and website owners.checked 8 Oct 2026
- License constraints
- The pricing page says the licensed webphone is restricted to the buyer’s own VoIP and web servers, subject to the selected license’s server allowance.checked 8 Oct 2026
- Product
- Mizu WebPhone is a SIP standards based VoIP client that can be embedded in a webpage or used as a JavaScript SIP library.checked 8 Oct 2026
- Security
- The product page lists SIPS, TLS, DTLS, and SRTP encryption, as well as end-to-end encryption for webphone-to-webphone calls.checked 8 Oct 2026
- Support
- Included support amounts vary by license; the vendor says support is provided by email and response time is usually up to one work-day.checked 8 Oct 2026
The company
- Headquarters
- Brasov, Romaniachecked 28 Sep 2026
- Maker
- MizuTech says it develops Mizu Webphone and describes itself as a VoIP software and services company based in Brasov, Romania.checked 8 Oct 2026
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