Vobiz Plivo migration skill

Use this when porting an existing Plivo voice app to Vobiz. The two platforms are near 1:1: the SDK method names match, calls.create(...) has the same signature, the /Account/{auth_id}/Call/ path is identical, and VobizXML ≈ PlivoXML. Prefer the smallest possible diff - do not rewrite working logic.

Migration at a glance

For most apps the entire migration is:

1. Swap the package/client (plivo → vobiz) and credentials/base URL.
2. Rename <GetDigits> / <GetInput> → <Gather> in your XML (and timeout→executionTimeout, type→inputType).
3. Point the webhook signature check at X-Vobiz-Signature-V2/V3 (same HMAC-SHA256+nonce scheme).
4. Buy new Vobiz numbers and re-point your flows - you can't port Plivo numbers.
5. Re-point answer_url / hangup_url, test, canary, cut over.

What actually changes