Celitix Blogs
Blogs written by experts on WhatsApp Business API, bulk SMS campaigns, RCS messaging, voice call services, outbound dialer (OBD), chatbot automation & CPaaS solutions and omnichannel marketing trends. Read in-depth guides, integrations tutorials, industry news, product comparisons and growth strategies for the modern business.
WhatsApp blue tick verification, who qualifies and why applications fail
A customer gets a message from a number they do not recognise and ignores it. This guide covers what the verification mark actually does, the green versus blue confusion, the real eligibility bar, and why most applications are rejected on notability rather than paperwork.
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How to get WhatsApp username, and what it actually changes for business
WhatsApp opened username reservations on 29 June 2026 and the full rollout is still ahead. This guide covers the five steps to claim one, what reservation actually buys you, the fact most coverage is getting wrong about searchability, and what genuinely changes for a business.
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Rcs messaging for banking, verified alerts that customers can actually trust
Rich cards are what gets demoed. The verified sender is why banks actually move. This guide covers which alerts belong on RCS, what must never be sent on any channel, and how read receipts change dispute handling.
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Rcs messaging vs sms, which channel to use and when, compared for India
One of these two still works on a feature phone with no data. The other shows a carousel, a verified logo and tappable buttons. This guide compares reach, cost and reporting, and says which channel to use for OTP, alerts and campaigns.
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What rcs messaging on iphone means for your customers
Apple switched on RCS, so iPhones can now receive branded business messages in the native Messages app. This guide covers how that differs from iMessage, how to turn it on, and what the rollout changes for anyone sending in India.
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How to activate rcs on android and iPhone, step by step
The setting that switches on rich messaging sits inside Google Messages, not in your phone's main settings. This guide shows where to find it on Android and iPhone, and what to check when it refuses to connect.
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How rcs messaging works, from brand verification to the handset
RCS turns a plain grey text into a branded card inside the phone's own messaging app. This guide walks the delivery path behind it, from brand verification and template approval through to the SMS fallback.
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