Board interrupts and routines of digital mobile telecommunication exchange conference equipment

摘要

The present invention relates to a board interrupt for handling a risk of a call disconnection when a clock fault of a time switch occurs in a conference communication apparatus of a digital mobile communication exchange, In order to perform various service functions according to the clock of the time location, if the clock necessary for service execution shakes, there is a risk that the call is disconnected due to data loss. The board interrupt part is newly added to the conference call device by hardware and firmware logic So that the system can be stabilized when the clock is unstable.