A novel tuned coupled-microresonator filter with a known transfer function. If the network utilizes the SIP signaling protocol, then the messages sent by an overloaded network element are SIP INVITE and SIP CANCEL. The polysulfide polysilane is then hydrolyzed and may be combined with other hydrolyzed compounds. Such sequential group dividing and the representative color extracting are repeated until a specific number of representative colors are obtained. A lockout mechanism can also be provided to prevent closure of the carrier without a battery installed.