code: def getTrunkStats(self, trunkList):
          
          re_list = []
          info_dict = {}
          for filt in trunkList:
              info_dict[filt[0]] = 0
              re_list.append(re.compile(filt[1], re.IGNORECASE))
                    
          if self.checkVersion('1.4'):
              cmd = "core show channels"
          else:
              cmd = "show channels"
          cmdresp = self.executeCommand(cmd)
  
          for line in cmdresp.splitlines():
              for idx in range(len(re_list)):
                  recomp = re_list[idx]
                  trunkid = trunkList[idx][0]
                  mobj = recomp.match(line)
                  if mobj:
                      if len(trunkList[idx]) == 2:
                          info_dict[trunkid] += 1
                          continue
                      elif len(trunkList[idx]) == 4:
                          num = mobj.groupdict().get('num')
                          if num is not None:
                              (vmin,vmax) = trunkList[idx][2:4]
                              if int(num) >= int(vmin) and int(num) <= int(vmax):
                                  info_dict[trunkid] += 1
                                  continue
          return info_dict
docs: Query Asterisk Manager Interface for Trunk Stats.
          
          CLI Command - core show channels
  
          @param trunkList: List of tuples of one of the two following types:
                              (Trunk Name, Regular Expression)
                              (Trunk Name, Regular Expression, MIN, MAX)
          @return: Dictionary of trunk utilization statistics.