Phase 4 — Production Cutover

Checklist

#	Task	Owner	Notes
1	Production `AccountKey` and `AccountSecret` issued.	Telegent	—
2	Production webhooks confirmed reachable from Telegent infrastructure.	Joint	—
3	Production Message Route + Voice Route created (partner-owned going forward).	Partner	Joint call for first-time setup if needed
4	First production number provisioned end-to-end (Product → Package → Subscriber → Number → Subscription).	Partner	Capture MSISDN + TNID
5	First production outbound SMS sent and delivered.	Joint	—
6	First production inbound SMS received and parsed.	Joint	—
7	Partner-side monitoring / alerting in place (webhook failures, token expiry, error rates).	Partner	—
8	On-call escalation path documented (who pages whom, what hours, how).	Joint	—
9	Go-live sign-off.	Joint	Date + initials

First Production Number — End-to-End Flow

The first live number must be provisioned in this exact dependency order:

Create Product

POST /v1.0/products — defines what you’re selling (eSIM, data, SMS bucket, etc.)

Create Package

POST /v1.0/packages — bundles one or more Products into a priced offering

Create Subscriber

POST /v1.0/subscribers/create — the end user who will own the number

Provision Number

POST /v1.0/numbers/provision — assign the number to the Subscriber and AccountSave the PhoneNumberAssigned (MSISDN) and PhoneNumberId (TNID).

Create Subscription

POST /v1.0/subscriptions — links the Subscriber + Number + Package and starts billing

Phase complete when: First production message has flowed both directions, monitoring is live, and the escalation path is written down.

Previous: Phase 3 — API Walkthrough & Testing

Sandbox testing sign-off

First 30 days stabilization