Deliverability
What is RCS? Rich Communication Services explained for businesses
RCS (Rich Communication Services) upgrades SMS in the default messaging app. What the spec covers, RCS vs SMS and chat apps, and how to check who can get it.
7 min read
Articles tagged “RCS”
5 articles.
Guides
How to check if a phone number uses iMessage
To check if a number uses iMessage, run a bulk iMessage check (yes, no or unknown). Find your own iMessage ID in Settings, plus blue vs green bubbles and RCS.
7 min read
Deliverability
How to choose a messaging channel by country
WhatsApp, Telegram, Viber, LINE, Zalo, RCS or SMS? How to pick a channel per country for messages customers expect, and measure it on your own base.
7 min read
Guides
Messaging-app registration checks: a guide for every app
What a registration check tells you for WhatsApp, Telegram, Viber, Signal, iMessage, RCS, LINE, Zalo and more: modes, unknowns, billing and consent.
9 min read
Deliverability
RCS capability check: what it tells senders before they send
To test if a number supports RCS, run a capability check: capable, not capable or unknown, before you send. Plus test numbers, iPhone support and SMS fallback.
9 min read
