Zadarma review

Zadarma is a hosted cloud phone service: its cloud PBX, VoIP calling, virtual numbers and CRM run as vendor-operated services rather than software you install on your own server. It sits between your business and the public telephone network, handling inbound and outbound calls, number routing, IVR menus, call recording and related statistics.

A team can use Zadarma for international numbers, route incoming calls through a switchboard, and send calls to internet-connected devices or forwarded phone numbers. The vendor says its virtual numbers cover 110 countries and its PBX includes call transfer, pickup, forwarding and voicemail. Its Teamsale CRM is integrated with the PBX for customer profiles, deals, tasks and sales tracking; calls can be made and received from a browser.

This is primarily a communications service, not a self-hosted PBX or a general-purpose communications API. The homepage also lists mobile and desktop apps, speech recognition analytics and integrations with CRM, AI and messaging systems. Treat it as a managed telephony layer in your stack, and confirm custom integration requirements before choosing it.

Zadarma’s homepage describes a personal-account configuration wizard for setting up PBX features, browser-based calling through Teamsale CRM, dedicated mobile and desktop apps, and integrations with CRM, AI and messaging systems. Those are the integration surfaces it names; it does not name an API style, SDK, programming language, CLI, webhook protocol or plugin system. The vendor does not publish API and SDK details on its homepage, so confirm current developer documentation and supported integration methods with Zadarma before planning custom code.

The built-in PBX features cover common call flows without custom development: IVR, call transfer, pickup and forwarding, voicemail, recording and statistics. Virtual numbers can receive calls over the internet or forward them to another phone number. A Reddit user reports using a Yealink SIP-one thread, while another advises connecting a number to SIP for incoming calls; these are user reports, not a substitute for vendor documentation.

For a custom application, ask Zadarma about authentication, call-control operations, event delivery, language-specific SDKs, quotas and test environments. Also verify whether the systems you use are supported integrations rather than assuming that a general integration claim covers them.

Standard is free and includes five PBX and CRM users, no virtual phone numbers, 200 MB of call-recording storage, four IVR menus and four concurrent outgoing calls. That is a useful starting point for a small team testing basic phone flows, but the plan includes no numbers, and calls still depend on Zadarma’s calling tariffs.

Office includes 10 users, four virtual numbers, one toll-free number with 200 toll-free minutes, 2 GB of recording storage and six IVR menus. Corporation includes 20 users, eight virtual numbers, two toll-free numbers with 600 toll-free minutes, 5 GB of recording storage and 12 IVR menus. The pricing details list no monthly or annual prices for those paid plans. Zadarma’s homepage advertises unlimited PBX plans from $4 per user per month, but confirm which plan and billing terms that applies to before budgeting.

Additional phone numbers are listed at $2 each. Additional virtual numbers and PBX features cost extra, with prices not published; calls beyond included minutes use the Standard tariff. Get the relevant number, call and feature rates in writing before estimating a production bill.

Zadarma is presented as a vendor-hosted cloud PBX, VoIP service and CRM, not as a self-hosted server. The vendor does not publish an open-source license or source-availability details on its homepage, so do not plan on forking the service or running its telephony stack on your own infrastructure without written confirmation.

The service’s phone numbers, call routing, recordings, statistics and CRM data are managed through the Zadarma account. The vendor’s homepage does not describe data-export formats or a migration path. Before moving business calls onto the platform, ask how to export contacts, call records and recordings, and how number portability works in the countries you use.

The main lock-in risk is operational: numbers and call flows are tied to a hosted provider, and switching providers may involve reconfiguring devices, IVR and forwarding or moving numbers. Keep a copy of key configuration and confirm export and number-porting options before scaling.

The vendor lists call recording, statistics, speech recognition analytics and a 24/7 multichannel support service. The plan details also set practical capacity limits: user counts, IVR menus, recording storage, included numbers, toll-free minutes and concurrent outgoing calls vary by plan. Confirm how those limits apply to your routing and call volume, along with current calling rates, before putting a customer-facing line on the service.

Reddit reports are mixed. Some users say the service works for their calls and SIP phones; others describe missed incoming calls, one-way or absent audio, SMS problems, calls that stopped connecting and difficult support interactions. One report describes audio dropping after 90–120 seconds when using Zadarma SIP through LiveAgent, while calls through Zadarma’s own app reportedly worked. These are individual accounts, not measured reliability data.

Before depending on Zadarma, test inbound and outbound calls, forwarding, SMS where relevant, and the exact devices and network paths your team will use. Ask the vendor about incident escalation, security and compliance requirements, data retention, availability commitments and recovery procedures; the homepage does not set out those production terms.