v52

OpenAPI 3.1.0raw.githubusercontent.com2026-07-311,1941,9384.1 MB

Verified Numbers

Request phone number verification

Initiates phone number verification procedure. Supports DTMF extension dialing for voice calls to numbers behind IVR systems.

post/verified_numbers

Request body

extensionstring

Optional DTMF extension sequence to dial after the call is answered. This parameter enables verification of phone numbers behind IVR systems that require extension dialing. Valid characters: digits 0-9, letters A-D, symbols * and #. Pauses: w = 0.5 second pause, W = 1 second pause. Maximum length: 50 characters. Only works with 'call' verification method.

phone_numberstring required

verification_method'sms' | 'call' required

Verification method.

Example request

{
  "extension": "ww243w1",
  "phone_number": "+15551234567",
  "verification_method": "sms"
}

Response

Expected response to a valid request.

phone_numberstring

verification_methodstring

Example response

{
  "phone_number": "+15551234567",
  "verification_method": "sms"
}