%
% stack: tracker
%

empty !TrackName
empty !IMEI
"trak_" &2) text ofconn exec
_TrackName isnull)
{
%
% not active tracker, no info
%
 "NoTracker"
}
{
 _TrackName length) 6 eq
 _DeviceMode length) 34 eq
 and
 {
%
% good tracker name and sim credentials
%
  _IMEI isnull)
  _IMEI length) 15 ne
  or
  {
%
% not proper IMEI
%
   "NoIMEI"
  }
  {
%
% proper IMEI, tracker is properly provisioned
%
   "Valid"
  } ifelse
 }
 {
%
% not a valid tracker name or sid
%
  "Invalid"
 } ifelse
} ifelse
dup !Sim.Status
"Valid" eq$
%
% stack: tracker-valid
%