| MakeCall(RegistrarRecord, String) | Initiates call from the specific device. Depending on the device capabilities call will be initiated uaCSTA connection, 3CXDirectCallControl (for 3CX clients) or using MakeCall service which will make a call to the device and then transfer call to requiested destination |
| MakeCall(String, DictionaryString, String) | send request to system extension. |
| MakeCall(String, String) |
legacy form of the request to make call. added only for backward compatibility with software which relies on the legacy behavior of MakeCall service. |