Tag: Callback Number Whitelisting

Before-and-after dlt sms template showing “rejected” vs “approved” after pre-tagging variables and whitelisting urls and numbers.
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TRAI DLT Variable Tagging 2026: How to Whitelist URLs & Numbers and Stop SMS Rejections

TRAI’s latest DLT direction tightens SMS template compliance: every variable field—especially URLs,…

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Tarun Karan
15 Min Read
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