Check whether a contact can be asked to call, or already allowed WhatsApp calls
+40711222333)nullpending, granted, rejected, revoked, expired, or null if never askedtrue only when consent is granted and still validtrue when the 24-hour chat window is open and WhatsApp still allows another asktrue when the customer messaged this sender in the last 24 hoursnullnullsender_id returns SENDER_NOT_FOUND.can_request is false when the chat window is closed — send a regular template and wait for a reply first. See WhatsApp Calling.can_request and can_call are also false when the sender’s country does not allow business-initiated WhatsApp calls (United States, Canada, Egypt, Vietnam, Nigeria, Türkiye). Inbound calls still work.