rod007vrr
11/05/2025, 3:24 PMVapi Support Bot
11/05/2025, 3:25 PMrod007vrr
11/05/2025, 3:27 PMChiranjeet Mishra
11/06/2025, 9:32 PM/call endpoint and specify necessary parameters like assistantId, phoneNumberId, and the customer's phone number in the following format:
json
{
"assistantId": "assistant-id",
"phoneNumberId": "phone-number-id",
"customer": { "number": "+11231231234" }
}
4. **Trusted Calling**: Implement measures like STIR/SHAKEN to ensure call authenticity ([details here](https://docs.vapi.ai/calls/outbound-calling)).
5. **Schedule Calls**: For future calls, use schedulePlan with an ISO date-time string:
json
{
"assistantId": "assistant-id",
"phoneNumberId": "phone-number-id",
"customer": { "number": "+11231231234" },
"schedulePlan": { "earliestAt": "2025-05-30T00:00:00Z" }
}
For more details on outbound calling, check [this document](https://docs.vapi.ai/calls/outbound-calling). If you face issues with calls dropping, refer to our [troubleshooting guide](https://docs.vapi.ai/phone-calling/transfer-calls/debug-forwarding-drops).