Exception Sequences Exceptions to a routing program are allowed by entries of Exception Sequences in the program. Zoning tables are required for the implementation of meter pulsing since the pulse rate is directly related to the geographic location of the destination number. MP detects the country code or city code of the destination number dialed by the caller and then refers to the zoning table to determine what rate of pulsing is required for that country code or city code. It then generates the pulses at the required rate as the call progresses. The user may install a pulse meter on the line to count the pulses in order to calculate the cost of the call.
Some service providers can signal the start of a call by reversing the line polarity.
It is intuitive in its design and is therefore easy for anyone who is computer literate to use. The explanation is complete with many examples to help users to write the programs themselves. It saves time and money. It works well with pulse dialing telephone lines and thus opens up new markets for your service.