One partner.
Every channel.
Every country.
Rain Communication connects carriers, aggregators and enterprises to reliable Wholesale Voice, A2P SMS, RCS, WhatsApp, Viber and IMO messaging — with quality routes and a NOC team that watches every route.
A2P SMS, voice and messaging, under one roof
Pick one channel or combine them. Every route is tested and monitored by our NOC before and after it goes live.
Wholesale Voice
Carrier-grade voice termination with CLI and non-CLI options and clear quality tiers.
- CLI / NCLI
- ASR & ACD tracked
- SIP interconnect
A2P SMS
Wholesale and enterprise SMS for OTP, transactional and promotional traffic, with direct and premium routes.
- OTP
- Transactional
- SMPP / HTTP
- DLR reports
RCS Business Messaging
Rich, branded messages with images, buttons and carousels — a richer next step from plain SMS.
- Verified sender
- Rich cards
- Suggested replies
WhatsApp Business API
Official WhatsApp messaging as a Meta Business Partner — OTP, alerts and two-way customer chat.
- Authentication
- Utility
- Marketing
iGaming SMS Platform
Casino SMS, gambling and betting SMS, iGaming promotion and player OTP, on routes tested for gaming content.
- Casino SMS
- Gambling & betting SMS
- Player OTP & 2FA
Viber Business Messages
Branded Viber messages with images and buttons, with SMS fallback if the message is not delivered.
- Branded sender
- SMS fallback
IMO Messaging
Reach users on IMO — a popular app across South Asia and the Middle East — for OTP and notifications.
- OTP
- Notifications
Business Automation
We automate the repetitive work around your messaging — rate updates, traffic alerts, daily reports and customer follow-ups — so your team can focus on selling.
- Auto reports
- Rate & route alerts
- AI assistants
Custom Panels & Design
Your own branded customer panel, dashboard or website — built to your workflow, with live traffic, balance and delivery reports for your clients.
- White-label panels
- Dashboards
- Web design
iGaming SMS: casino promotion, gambling traffic and player OTP
A dedicated iGaming SMS platform for casino, sports betting and gambling operators and their affiliates. Send casino promotion SMS, bonus and re-engagement campaigns, and player OTP — on routes tested for gambling content, for licensed operators in markets where it is permitted.
Mobile authentication
OTP for sign-up, login and withdrawals, so every account is tied to a real, verified mobile number.
Betting & sportsbook SMS
Match alerts, odds updates and bet confirmations for sportsbooks, plus 2FA for logins and payouts.
Casino & gambling SMS
iGaming promotion SMS — welcome bonuses, free spins, deposit offers and win-back campaigns — on routes that pass casino and betting content.
Tested before go-live
Routes are tested with your real sender ID and content before your traffic moves.
Delivery you can trust
Real delivery reports, with our NOC watching quality so fake or failed delivery is caught early.
SMPP & HTTP API
Connect your platform in days, with SMS, WhatsApp and Viber available from one partner.
A carrier partner that picks up the phone
We have worked in telecom wholesale since 2010. We know that one bad route can hurt a whole campaign, so we test before we sell and watch every route after it goes live.
Tested routes
Every route is tested before launch and checked again whenever quality drops.
Clear quality tiers
Each rate comes with its quality level, so you know exactly what you are buying.
24/7 NOC
Engineers watch delivery and latency and step in before you notice a problem.
Two-way partnerships
Open to bilateral traffic deals with carriers and aggregators.
Fast onboarding
Simple KYC, quick test traffic, and SMPP or HTTP connection in days.
Compliance first
Strict anti-spam and anti-fraud checks to protect your sender reputation.
From first message to live traffic
Share your needs
Tell us your destinations, volume and target rate.
Get a rate offer
We send rates with the quality level for each route.
Test & connect
Quick KYC, SMPP/HTTP or SIP setup and test traffic.
Go live
Our NOC watches your traffic and keeps quality steady.
Built for wholesale and high-volume senders
A2P SMS questions, answered
Do you offer casino SMS and gambling SMS routes?
Yes. We provide casino SMS and gambling SMS routes for licensed iGaming operators and affiliates — for promotions, bonuses, re-engagement and player OTP — tested with your real sender ID and content before go-live, in markets where gambling messaging is permitted.
Can I send iGaming promotion SMS through Rain?
Yes. Our iGaming promotion SMS routes carry casino and betting offers such as welcome bonuses, free spins and deposit campaigns. We help you pick routes that pass gaming content and deliver real clicks, and we share delivery data so you can measure results.
What is A2P SMS?
A2P (application-to-person) SMS is a message sent from a business system to a mobile user — for example OTP codes, alerts, notifications and promotions. Rain Communication delivers A2P SMS worldwide over SMPP and HTTP API.
Do you provide wholesale A2P SMS routes?
Yes. We supply wholesale A2P SMS routes to carriers, aggregators and CPaaS platforms, with clear quality levels (direct, SIM, local bypass) for each route and bilateral traffic deals.
How do I connect to your A2P SMS gateway?
You can connect by SMPP (v3.4) or HTTP API. After a quick KYC we open a test account, run test traffic with your real sender ID and content, and then move you to live traffic.
Can you send OTP SMS for verification?
Yes. Our OTP SMS routes are chosen for speed and stable delivery, and are used for sign-up, login, payments and withdrawals. We can add WhatsApp or Viber as a fallback channel.
Do you support iGaming and casino SMS traffic?
Yes. Our iGaming SMS platform covers mobile authentication (OTP and 2FA) and player traffic for casino, betting and gaming operators, on routes tested for gaming content where it is permitted.
How do you prevent fake DLR?
Every route is tested before launch and re-tested while live. Our 24/7 NOC compares delivery reports with real-world tests and customer feedback, and removes any route that reports fake delivery.
Let's talk routes
Send us your destinations, expected volume and target rate. Our team will reply with an offer.