referCall method
Transfer an active SIP call to another destination (SIP REFER).
POST /v1/realtime/calls/{call_id}/refer
Implementation
Future<void> referCall({
required String callId,
required String targetUri, // e.g. "tel:+14155550123" or "sip:agent@example.com"
}) async {
final res = await postJson('/realtime/calls/$callId/refer', {'target_uri': targetUri});
if (res.statusCode != 200) {
throw OpenAIRequestException.fromHttpResponse(res);
}
}