7.4 TROUBLESHOOTING GUIDE
160 SYSTEM MAINTENANCE AND TROUBLESHOOTING
7.4 TROUBLESHOOTING GUIDE
Table 30
PROBLEM PROBABLE CAUSE POSSIBLE SOLUTION
Nothing is heard from the
VPS when accessing the VPS
even though APT
Integration has been
established.
• Bad connection with PBX. • Check the System Program
[130] of the KX-TA624 to see if
the programming agrees with
the actual connection.
The VPS does not operate. • Bad printed circuit board.
• Bad connection with PBX.
• Incomplete card attachment.
• Change the printed circuit
board.
• Check the connection between
the VPS and PBX.
• Attach the card firmly.
Dialing is not registered. • A pulse phone is being used by
mistake.
• Improper setting of integration
mode.
• Change to a touch tone phone.
• Adjust the integration mode
properly between the VPS and
your PBX.
Line disconnection occurs
while transferring an outside
call.
Outside calls cannot be
transferred.
• Improper setting of the
sequence.
• Improper setting of the
hooking time.
• Improper setting of the CPC
signal.
• Adjust the transfer sequence to
that of the connected PBX and
reset.
• Adjust the hooking time to that
of the connected PBX and reset.
• Adjust the CPC signal to that of
the connected PBX and reset.
Unable to make outside calls. • Improper setting of the outside
call dial mode.
• Improper setting of the outside
call dial procedure.
• Reset the outside call dial mode
(tone/pulse) properly.
• Reset the outside line access
sequence of the connected
PBX.
Unable to call an extension. • I mproper setting of extension
numbering plan. • Adjust the extension numbering
plan properly.
Unable to access the
mailbox. • Improper setting of the number
of digits in the mailbox
number.
• Readjust the number of digits in
the mailbox number.
Connected terminal (RS-
232C port) does not operate. • Improper connection.
• Improper setting of the
parameter.
• Connect the cable firmly.
• The terminal and VPS should
have the same parameter
settings for Baud Rate, Word
Bit Length, Parity and Stop Bit
Length.