Make a SIP trunk call

Initiates a real-time phone call through the AI assistant.

This endpoint expects an object.

model_idstringRequired

Agent ID. You can find it on the agent’s page in your dashboard.

to_phone_numberstringRequired

Call recipient's phone number.

namestringRequired

Call recipient's name.

custom_variableslist of objectsOptional

The key and value pairs of custom variables that you can dynamically inject into the prompt. For more details, see Custom variables.

lead_emailstringOptional

The customer's email that can be used to book an appointment.

lead_timezonestringOptional

The customer’s time zone that can be used to book an appointment. For a list of all available time zones, see Time zones.

team_idstringOptional

The ID of the team can be obtained by opening a team and under the name of the team you should be able to copy it

200

statusstring or null

responseobject or null

1	curl -X POST https://api.synthflow.ai/v2/agent/make_call_sip_outbound \
2	-H "Authorization: Bearer <apiKey>" \
3	-H "Content-Type: application/json" \
4	-d '{
5	"model_id": "1696372226173x164740052408336400",
6	"to_phone_number": "+12345678987",
7	"name": "David",
8	"custom_variables": [
9	{
10	"key": "Company",
11	"value": "Synthflow"
12	},
13	{
14	"key": "Role",
15	"value": "Sales Specialist"
16	}
17	],
18	"team_id": "<team_id>"
19	}'