BSG

How can we help?

Step-by-step guides, answers and rules for SMS, WhatsApp, Viber, RCS, Telegram, Voice Agent and other BSG products.

Getting started

Developer quick start →
01

Set up your account

Registration, profile, 2FA, currency and time zone.

 02

Top up and register a sender

Payment methods, prepaid billing and sender ID approval.

 03

Send your first campaign

Upload contacts, write a message, preview and send.

Browse by product

Account

Profile, security, notifications, account modes.

Contacts

Contacts, lists, Stop List, import and export.

Billing & Prices

Payments, top-ups, refunds, pricing.

SMS

Bulk and personalized campaigns, senders, templates, reports.

Countries & Sender IDs

SMS rules by country and sender registration.

WhatsApp

WhatsApp Business API: onboarding, pricing, limits, errors.

Viber

Viber Business Messages: setup, campaigns, SMS fallback.

RCS

Rich branded messages with media and buttons in the native SMS app.

Telegram

Telegram OTP: verification codes with SMS and voice fallback.

Number Intelligence

Number Verifier and MNP Lookup: check that numbers are active and find their carrier.

ShortURL

Branded short links and click tracking.

Email

Transactional email: overview and how it works.

2FA

One-time codes via SMS and Viber.

2WAY SMS

Two-way SMS: replies, dedicated sender, CRM connection.

Voice Agent

Self-service AI voice agent: setup, telephony, AI providers, billing.

Voice Bot

Automated calls: creation, limits, reporting.

Testelium

SMS delivery testing software.

Cloud SMS Platform

Rent the BSG messaging platform for your SMS business.

API & Integrations

REST API, SMPP, ready integrations.

Legal

Terms of Use, Privacy Policy, SMS marketing rules.

White Label

Partner account: subaccounts, prices for clients, partner host.

Popular articles

How to import contacts from a file How to top up your balance How to create and send an SMS campaign How to register an SMS sender ID Getting started with WhatsApp on BSG Getting started with Voice Agent self-service

For developers

cURL
curl -X POST \
  https://one-api.bsg.world/api/campaigns/whatsapp/send \
  -H "Authorization: Bearer {your_api_key}" \
  -H "Content-Type: application/json" \
  -d '{ "destination": "380501234567", ... }'
One API for every channel

SMS, WhatsApp, Viber, RCS, Email and 2FA: one key, one JWT.

Authentication → SDKs: PHP, Node.js, Python, Go, Ruby, Java → Status codes & errors →
Get API key Dev-Portal

What's new

All release notes →
DashboardRCS and WhatsApp added to the client dashboard with statistics ShortURLOptional click filtering in ShortURL reports VoiceGemini TTS support and more stable voice-to-voice flows

Can't find an answer?

Write to our support team, we'll help you set things up.

Submit a request support@bsg.world