Two standard numbers you’ll meet in every Indian IPTV compliance conversation. Here’s what TEC 57015 and 57025 actually cover, in plain terms, and why they’re deliberately separate.

Behind the paperwork of Indian IPTV compliance sit two TEC (Telecommunication Engineering Centre) specifications. Knowing which is which — and why they’re separate — makes the whole compliance picture click.
CAS decides whether a device may watch; SMS decides who the subscriber is and what they pay for. Keeping them as separate, reconciling systems is both a design principle and a compliance expectation — it’s what lets an auditor verify each independently and catch drift between them.
The SMS holds the subscriber and their entitlements; the CAS enforces those entitlements at playback. They must agree — every active subscriber in SMS should have matching CAS entitlements, and vice-versa. Continuous reconciliation between the two is what keeps counts honest and audits clean.
These standards are the CAS+SMS base; Schedule-X adds the stricter IPTV/DRM obligations (fingerprinting, retention, watermarking) on top. Together they define a compliant platform.
HySky’s CAS (to 57015) and SMS (to 57025) are separate, reconciling services with a shared tamper-evident audit trail — so each standard’s requirements are met and independently provable.
Talk to a team that runs a live operator, not just sells software.