SMS WhatsApp Viber Voice Push Email 2FA / OTP FlashCall Number Lookup Number Validation Email Validation URL Tracking REST API SDKs WordPress Zapier Make All integrations
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The channels

Reach customers on the channel they actually use.

Seven ways to deliver a message — each with its own strengths, all behind one consistent API. Mix them, order them, and let ComniCube fall back automatically when one doesn't land.

01 — 06

SMS

Reach any phone on the planet, instantly — no app required.

200+ countries, 1,200+ carriers
Two-way replies & sender IDs
Sub-second delivery
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02 — 06

WhatsApp

The world's most-opened messaging channel, fully managed.

Official Business API
Rich templates & reply buttons
Meta-approved template manager
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03 — 06

Viber

3× higher open rates across Eastern Europe and the Middle East.

Branded, blue-tick sender
Rich media & CTAs
Regional dominance
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04 — 06

Voice

A real call, delivered at scale — for messages that must be heard.

Text-to-speech & audio
OTP & critical alerts
Global PSTN reach
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05 — 06

Push

Lock-screen reach on iOS and Android with zero per-message cost.

No carrier dependency
Highest-margin channel
Rich, actionable payloads
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06 — 06

Email

Transactional email from the same API, tuned for deliverability.

Dedicated IPs
Shared routing & webhooks
Receipts & resets at scale
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One payload, every channel

Order your channels. We handle the rest.

Pass an ordered list of channels and ComniCube attempts each in turn — moving to the next the instant one degrades, all within a single request and a single set of webhooks.

Cascading deliveryTry WhatsApp first, fall back to SMS, then Voice — your rules, evaluated per message.
Sub-second handoffMedian reroute on failover is 312ms — faster than your customer can refresh.
Unified trackingOne message ID follows the entire cascade, with a full attempt history per channel.
Choosing a channel

Which channel for which job.

A quick reference for the trade-offs. In practice, most teams combine several and let routing decide.

ChannelBest forGlobal reachRich media2-wayRelative cost
SMSOTP, alerts, universal reachUniversalMedium
WhatsAppConversations, support, receiptsHighMedium
ViberBranded reach in EE & MENARegionalLow
VoiceCritical, time-sensitive OTPUniversalHigh
PushEngaged app users, re-engagementApp-basedLowest
EmailReceipts, statements, long-formUniversalLowest
2FA / Verify

One-time passcodes that always arrive.

Verify is a managed OTP product built on the same gateway. Send a code, we pick the fastest channel, retry across channels on failure, and check the result — in two API calls.

Channel-agnostic deliverySMS first, Voice or WhatsApp on retry — managed automatically.
Built-in code lifecycleGeneration, expiry, and rate-limiting handled for you.
Fraud signals includedVelocity checks and risk scoring on every verification.
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SMS · sent Voice · standby verified in 1.2s
One integration

Add every channel by changing one parameter.

Start with one channel today and switch on the rest whenever you're ready — no new contracts, no new integrations.