SMS
Guides to business SMS: character sets, long messages, costs and delivery.
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Sending SMS to Spain: CNMC sender ID registration explained
Since 15 September 2026, Spanish networks block SMS, MMS and RCS from unregistered alphanumeric sender IDs. Who is affected, the rules, how to register with the CNMC Alias Registry, and…
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Yeastar SMS: add two-way business texting to Yeastar P-Series with everymessage
How to add everymessage as a custom SMS channel in Yeastar P-Series: how sending and signed replies work, what you need, the exact Yeastar settings, the API reference and common…
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3CX SMS: send and receive business texts in 3CX with everymessage
How to add everymessage as the SMS provider in 3CX: how sending, replies and delivery reports work, what you need, the 3CX settings, the API reference and common fixes.
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NetSapiens SMS: add two-way business SMS with everymessage as your carrier
How to use everymessage as an SMS carrier for NetSapiens through the SMS Advanced API: how outbound and inbound SMS work, what you need, the set-up steps, testing and common…
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UK SMS sender ID rules: why generic names like Verify and OTP are blocked
UK networks block generic SMS sender IDs such as Verify, OTP and Delivery to stop scams. Which sender IDs are restricted, what to use instead, and how everymessage checks sender…
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Two-way SMS in Amazon Connect: your options and how to set it up
How to let customers text your Amazon Connect contact centre: native AWS SMS versus connecting your SMS provider, sending texts from contact flows, and good practice.
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Email to SMS: how to send texts from your email
Send an SMS by emailing a mobile number. How to address the email, subject or body, keeping disclaimers out, length and delivery receipt settings, and getting replies back by email.
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RCS vs SMS vs WhatsApp: which should your business use?
A side-by-side comparison of SMS, RCS and WhatsApp for business: reach, features, cost and the best channel for passcodes, reminders, marketing and service.
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SMS character limits explained: GSM-7, Unicode and long messages
Why one SMS holds 160 characters, why long messages split at 153, and how one emoji or curly quote can triple the cost.