Call anywhere. From any phone.
Low, honest per-minute rates to every major destination — including direct routes to Iran from $0.30/min. Dial in with a PIN; no app or SIP client required.
Start calling →Services
Everything you need to run global voice.
From a single international call to a nationwide reseller operation — Zaqros operates the cloud-native, end-to-end encrypted voice platform behind every service on this page, backed by 30 years of telecom engineering experience.
One platform for global voice.
SIP trunking, IVR, DIDs, CDR analytics, and a customer portal — centralised billing, predictable per-second rates, auditable usage across your entire team.
Talk to sales →White-label voice, carrier-grade.
Launch your own VoIP or calling-card business on Zaqros infrastructure. Your brand, your customers, your rate sheet — backed by our tier-1 interconnects.
Request reseller kit →Core services
Nine services. One platform. One bill.
Every service below is operated on the same cloud-native voice backbone — SIP, media, encryption, billing, and observability built once and delivered everywhere.
BusinessesResellers
International voice termination
Carrier-grade outbound dialing, worldwide.
Place calls to any destination through Zaqros's redundant tier-1 and regional carrier interconnects. Quality-aware, least-cost routing picks the best path per call, with automatic failover when a route degrades.
- Direct routes to restricted and limited-access regions (including Iran at $0.30/min)
- Per-second billing, per-destination rate plans, live cost metering
- Multi-carrier failover with real-time quality scoring (ASR, ACD, PDD)
- DTMF passthrough (RFC 2833, SIP INFO, in-band) and fax relay (T.38)
SIP over TLS 1.3SRTP mediaG.711 · G.729 · OpusIPv4 / IPv6
BusinessesResellers
SIP trunking
Plug your PBX into a global voice backbone.
Bring your own PBX, softswitch, or UC platform and connect to Zaqros over SIP. We register your trunks, authenticate every call, and meter usage with carrier-grade precision — no PRI, no on-prem hardware.
- IP-authenticated or registration-based trunks, per-tenant isolation
- Concurrent call limits, per-trunk codec policies, DID routing
- Geo-redundant SBCs at multiple points of presence
- Detailed CDRs available by API, webhook, or CSV export
TLS 1.3 · SRTPRegistration & IP authCarrier-grade SBCs
IndividualsBusinessesResellers
Calling-card IVR
Dial in, punch a PIN, call anywhere.
Give every user a local access number and a personal PIN. The Zaqros IVR authenticates the caller, announces their balance, routes the call, and meters the cost live — no SIP client, no app install.
- Multilingual voice prompts, customisable per brand
- Account + PIN or caller-ID auto-recognition
- Live balance announcement and low-balance warnings
- Speed-dial shortcuts and recent-number redial
Inbound DID(s)Per-language prompt packsPCI-aware PIN handling
BusinessesResellers
DID provisioning
Numbers in every market, managed in one place.
Order inbound numbers (DIDs) in hundreds of countries, or bring the numbers you already own. Map each one to an IVR menu, a sub-account, a SIP trunk, or an external destination — all from the portal.
- Local, national, toll-free, and mobile number inventory where available
- Bulk import and export of existing number portfolios
- Per-DID rules: routing, recording, caller-ID, time-of-day
- Transparent per-number monthly rental, shown in the portal
IndividualsBusinesses
Customer self-service portal
A modern portal your users actually enjoy.
Every Zaqros account comes with a hosted web portal: account signup, PayPal top-ups, live balance, searchable call history, profile settings, and calling-card PIN management. Usable on mobile, fast on slow networks.
- Signup, login, password reset — TLS-protected throughout
- PayPal top-ups, instant credit on payment capture
- Searchable, filterable, exportable CDRs with per-call cost breakdown
- Profile, password, and calling-card PIN self-management
Resellers
White-label reseller platform
Your brand. Your customers. Our carriers.
Launch your own VoIP or calling-card business on top of Zaqros. Bring your logo, your domain, and your rate sheet — we bring the backbone, the SBCs, the carriers, and the billing engine. Settle monthly.
- Branded customer portal on your domain
- Sub-account hierarchy with per-account balances, PINs, and CDRs
- Wholesale termination rates with custom rate cards
- Dedicated SIP trunks, per-reseller failover policies, white-label IVR
Custom domainSub-account APIBulk operations
BusinessesResellers
Admin & financial operations
Run a real telecom business, not a spreadsheet.
An admin console for operators and finance teams: real-time usage, CDR search, balance adjustments, fraud alerts, and audit logs. Everything that happens on the platform is recorded, timestamped, and searchable.
- Live dashboards: concurrent calls, destination mix, ASR/ACD
- Credit / debit adjustments with reason codes and audit trail
- Per-user and per-tenant CDR exports for accounting
- Rate-sheet import, margin analysis, reconciliation reports
BusinessesResellers
APIs & webhooks
Integrate Zaqros into your product.
Zaqros exposes a clean HTTPS API for account provisioning, balance adjustment, rate lookup, CDR retrieval, and event webhooks — so you can build Zaqros directly into your own product or internal tooling.
- REST + JSON, bearer-token authentication, per-tenant scopes
- Webhooks for call events, payment events, and account lifecycle
- Idempotent endpoints with consistent error codes
- OpenAPI / Swagger documentation and Postman collection
HTTPSJWT / API keysOpenAPI 3
IndividualsBusinessesResellers
Security, fraud & compliance
Carrier-grade defences, out of the box.
Every Zaqros call rides encrypted transport. Every login is rate-limited and audited. Every account has a spend cap baked in. We continuously monitor for toll-fraud and abusive traffic patterns so you don't have to.
- End-to-end encryption: TLS 1.3 signalling, SRTP media, per-call key rotation
- Prepaid-first model — customers never owe more than their balance
- Real-time fraud scoring, velocity limits, and IP/geo anomaly detection
- Immutable audit trail and role-based administrative access
TLS 1.3SRTPRBACPrepaid spend cap
Integration
Four ways to connect to Zaqros.
Use one, use all — each integration is documented, authenticated, and encrypted end to end.
Individuals
Calling-card dial-in
Dial a local access number, enter your PIN, then the destination. Works from any phone, anywhere.
Businesses
SIP trunk
Register or IP-authenticate your PBX or softswitch to our SBCs over encrypted SIP.
Developers
HTTPS API & webhooks
Provision accounts, top up balances, fetch CDRs, and react to call events from your own stack.
Resellers
Branded customer portal
Launch a white-label portal on your own domain. Your customers only see your brand.
Technical specs
The short answer for your engineers.
Zaqros speaks the protocols your team already knows, with the cryptography they already expect.
| Signalling | SIP over TLS 1.3, WebRTC on request |
|---|---|
| Media | SRTP with authenticated key exchange |
| Codecs | G.711 (A/µ), G.729, Opus, iLBC; T.38 for fax |
| DTMF | RFC 2833, SIP INFO, and in-band |
| Authentication | IP-ACL, SIP digest, TLS client certs, JWT / API keys |
| Billing precision | Per-second, per-destination, multi-currency |
| Observability | Live CDRs, webhooks, CSV exports, OpenAPI docs |
| Deployment | Cloud-native, multi-region, automatic carrier failover |
Who gets what
Every service, every audience.
A quick reference of which services are available out-of-the-box for each audience.
| Service | Individuals | Businesses | Resellers |
|---|---|---|---|
| International voice termination | — | ||
| SIP trunking | — | ||
| Calling-card IVR | |||
| DID provisioning | — | ||
| Customer self-service portal | — | ||
| White-label reseller platform | — | — | |
| Admin & financial operations | — | ||
| APIs & webhooks | — | ||
| Security, fraud & compliance |
Operations & reliability
We operate voice like a tier-1 carrier.
Zaqros is designed, deployed, and operated using the same operational discipline as tier-1 voice operators — 24/7 monitoring, change-control, incident response, and root-cause analysis. Our team has three decades of telecom engineering experience, and that experience shows up in how the service runs, not just in how it’s marketed.
24/7 network operations
Around-the-clock monitoring of SIP, media quality, carrier health, and fraud signals. Humans on-call at all times.
Automated failover & health checks
Per-route quality scoring (ASR, ACD, post-dial delay) and instant carrier failover for every new call.
Change control & audit
Every configuration change, rate update, and admin action is versioned, attributed, and reversible.
Formal incident response
Published status, written postmortems for material incidents, and transparent follow-through on remediation.
FAQ
Services, answered.
Can I bring my own SIP trunk or DIDs?+
Yes. Zaqros supports bring-your-own SIP trunks (IP-authenticated or registration-based) and porting or importing existing DID portfolios. You can route traffic partly over your own carriers and partly over ours on a per-destination basis.
How fast can a reseller go live?+
Most resellers are onboarded and routing their first calls within a few business days. We provision your sub-account hierarchy, dedicated trunks, custom rate card, and branded portal in parallel.
Do you support high call volumes?+
Yes. Zaqros is deployed across multiple regions with redundant SBCs and carrier interconnects. Capacity is scaled elastically per tenant; production deployments handle thousands of concurrent calls.
What if a carrier goes down mid-call?+
Calls in progress can't be migrated, but new calls automatically fail over to the next-best carrier based on real-time quality scoring (ASR, ACD, post-dial delay). You won't see an outage — just a route change.
Can I integrate Zaqros with my CRM or billing system?+
Yes. Our HTTPS API and webhooks cover account provisioning, balance adjustments, rate lookup, CDR retrieval, and call/payment events. Everything a downstream system needs to keep in sync.
Is my customer data isolated from other tenants?+
Yes. Each tenant runs in its own logical data plane with isolated credentials, CDRs, and administrative scopes. Administrative access follows least-privilege and is fully audited.
Didn’t see your question? Ask our team →
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