SMS API
Delivery, routing, and operating SMS at scale.
UCS-2 concatenation silently burns prepaid SMS segments
One emoji or a Unicode character can flip GSM-7 to UCS-2, split a “single message” into billed segments, and leave finance reading composer counts instead of prepaid segment lines.
SMS routing and operations at scale: queues, corridors, and honest capacity
How B2B teams run high-volume SMS without routing theatre: corridor ownership, queue discipline, prepaid visibility, and when to escalate before users feel it.
Sender ID and alphanumeric SMS for B2B: what really affects delivery and blocks
Alphanumeric Sender ID is one leg of a three-leg stool with content and corridor rules. A buyer checklist for what actually decides delivery before production traffic.
SMS when deliverability drops: read statuses and act without panic
A B2B playbook for OTP and alerts when delivered rates dip — classify statuses, isolate corridors, protect the prepaid wallet, and fix root causes before retry storms.
SMS API buyer checklist: what B2B teams verify before production
A practical SMS API checklist for serious buyers — delivery proof, webhooks, prepaid spend control, compliance gates, and honesty about live vs setup.