When {HEAD ~ the adapter} detects that {TAIL ~ the VMS} has answered, it will send, in DTMF, the digits corresponding to the extension number it accumulated when monitoring the DID or E&M tie line call 
detects
When { HEAD ~ the adapter } detects that { TAIL ~ the VMS } has answered , it will send , in DTMF , the digits corresponding to the extension number it accumulated when monitoring the DID or E&M tie line call
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH