Control
Action type – set the test call type.
Make call – the gateway will make an outgoing test call.
Wait call – the gateway will await an incoming test call.
Destination channel – select a channel for the outgoing call interface. The LCR
settings do not affect the call.
Source channel – select the source channel for the outgoing call interface. Only
if Destination channel - According to LCR is used.
Wait on channel – select the channel for the incoming call interface.
Dial – called number.
Clip – calling number.