37Malicious Call TraceMalicious Call Trace provides a way for you to trace nuisance calls within yoursystem.While you are on a call:≠ Press Trace.If you do not have a trace button:† or ø 1. Press Transfer or Conference.2. Dial the Trace FFC, or SPRE codefollowed by °°°°‹‹‹‹.∫ 2637 3. Press the DN Key beside the flashingLCD indicator to return to the call.Centrex/Exchange Switchhook FlashCentrex/Exchange Switchhook Flash allows you to signal the CentralOffice/Exchange (CO) during an established call to use a Centrex service such ascall transfer or three-way calling. Since CO features are designed into theMSL-100 PBX, this feature is not applicable to the MSL-100.To use Centrex/Exchange LineSwitchhook Flash:1. Press Trunk Switchhook Flash. Youhear special dial tone.2. Dial the codes for your custom Centrexfeature.Trunk Switchook FlashDuring a call: Malicious Call Trace - Centrex Switchhook Flash
