Import a number you own at your carrier onto this trunk
Tone learns to answer for a DID your carrier already delivers to this trunk. Nothing is bought and no rental is charged. The number appears in GET /v1/numbers with provider: sip_trunk, and is released like any other — release stops answering; it does not touch your carrier. 409 if the number is live anywhere on Tone.
Requires the admin scope. A key with less gets 403 insufficient_scope.
Authorization: Bearer tone_live_… or tone_test_…. The prefix IS the environment: a test key reaches only the sandbox, and no request field bridges the two.
In: header
Path Parameters
The SIP trunk's id.
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
application/json
application/json
application/json
application/json
application/json
application/json
application/json
application/json
curl -X POST "https://example.com/v1/sip-trunks/string/numbers" \ -H "Content-Type: application/json" \ -d '{ "agentId": "9f1c2d84-4e3a-4f6c-b902-7d1e8a33c451", "e164": "+912261234567", "label": "Sales line — Mumbai" }'{ "data": { "agentId": "9f1c2d84-4e3a-4f6c-b902-7d1e8a33c451", "capabilities": { "sms": false, "voice": true }, "createdAt": "2026-08-25T09:14:22Z", "currency": "INR", "e164": "+918045678901", "environment": "live", "id": "4b7c1a02-9de5-4f31-bb07-2c1a5e9f0d43", "inbound": "ready", "label": "Support line — Bengaluru", "mediaEndpoint": { "authSecretId": "3f1a7f6e-2b4c-4d1e-9a8b-5c6d7e8f9a0b", "customParameters": { "tenant": "acme" }, "format": "linear16", "sampleRate": 16000, "type": "static", "url": "wss://media.acme.example/tone" }, "nextRentalAt": "2026-09-01T06:30:00Z", "numberType": "landline", "provider": "exotel", "purchasedAt": "2026-08-01T06:30:00Z", "recordCalls": true, "region": "KA", "releasedAt": null, "rentalPaise": 50000, "routed": true, "routingMode": "tone_agent", "series": "regular", "setupPaise": 50000, "sipTrunk": { "credentialId": "cred_5a1b", "inboundTrunkId": "tin_2c7d", "originationSipUri": "sip:acme@sip.livekit.cloud", "originationUriId": "ouri_9f2c", "outboundTrunkId": "tout_8e3f", "provider": "vobiz", "terminationDomain": "acme.sip.vobiz.example", "terminationRealm": "vobiz.example", "terminationUsername": "acme-out", "transport": "tls" }, "sipTrunkId": null, "status": "pending" }}