With little information that is posted there, I am assuming requirement is for sending sms / sms-over-smtp from VX9000 - adoption controller(legacy)
WiNG controller supports Clickatell's "API-ID" interface, but latest Clickatell "API Key" interface is not supported in WiNG controller.
If there is a previously created Clickatell account with "API-ID" interface, that account will work in VX9000 controller.
Clickatell's latest "API Key" interface (platform interface) is supported in WiNG Guest platform - Eguest server.