Dial Number Preview is when a telephone number is first dialed (previewing the number in the display)then Speaker or a line key is pressed to place the call.Conditions• If PRG 21-01-10 is programmed with an entry other than 0, a call does not have a talk path unlessthe user dials at least the number of digits entered in this option when placing an outgoing call. Thismeans that an entry of 4 or higher in this program causes a problem when dialing 911. Since it isonly a 3-digit number, the call does not have a talk path, preventing the emergency dispatcher fromhearing the caller. This option should be kept at its default setting of 0 to prevent any problem withdialing 911.• CAMA Trunks are not supported.• The 911 Cut Through feature works when dialing trunk Access+911.Calling Party Number (CPN)CPN sent when making a normal trunk call from a terminal.Table 1-21 CPN for Standard CallsPRG 20-08-13 PRG 21-12-01 PRG 21-13-01 CPN: PRGOff Not Assigned Not Assigned None *1Assigned None *1Assigned Not Assigned 21-12-01Assigned 21-12-01On Not Assigned Not Assigned None *1Assigned 21-13-01Assigned Not Assigned 21-12-01Assigned 21-13-01Off Not Assigned Not Assigned None *1Assigned None *1Assigned Not Assigned 21-12-01Assigned 21-12-01On Not Assigned Not Assigned None *1Assigned 21-13-01Assigned Not Assigned 21-12-01Assigned 21-13-01*1. The CPN provided is from the service provider.CPN sent when making a normal trunk call from a Virtual Extension (VE).ISSUE 2.0 SL1100Features and Specifications Manual 1-267E
