User manual
Troubleshooting  List of Error messages 
6
Cause Code  Description  Event 
18E1  Called Party is 
busy 
NCS is rejecting the call because the 
specified MES ID is in the "MES busy" list 
at the NCS, and is listed as being busy 
with a call through the same LES as that 
now requesting a "call announcement" 
addressed to that MES 
18E2     
18E4   
18E5     
1C61   
1F01  Normal 
(not shown in 
the handset) 
LES is clearing the call because of the 
receipt of "on-hook" signalling from the 
relevant terrestrial circuit. 
1F11  Called Party is 
busy 
LES is clearing the call because the 
terrestrial called party is engaged (busy) 
1F21  No User 
responded 
LES is clearing the call because 
appropriate "off-hook" signalling from the 
terrestrial called party has not been 
received by the LES within the allowed 
time limit 
1F61 Destination 
out of order 
LES is clearing the call because of the 
detection of a failure in the relevant 
terrestrial circuit 
1F62  Normal  The LES is clearing the call because the 
terrestrial calling party or the terrestrial 
network has cleared the call before the 
102  May 2005 










