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3-4 Modem 3600
Reasons for Call Termination
The conditions described in Table 3-1 cause call termination.
Table 3-1. Reasons for Call Terminatio n
Condition
Description
Abort Disconnect
(No answer, busy sig-
nal, no modem, etc.)
Default 30 sec; select 1 to 255 sec
(S-register 7).
ATH Disconnect command.
Loss of Carrier
Disconnect
Select 100 ms to 25.5 sec (S-register 10).
Receive Long Space
Disconnect
Disabled or select 2 sec.
DTR Disconnect Disabled or select 10 ms to 2.55 sec
(S-register 25).
Loss of Line Current
Cleardown A disconnect method used in V.32 and V.34
mode.
LCD Display When TALK/DATA is pressed, the LCD
displays DO YOU WANT TO GO TO
TALK? When YES is pressed modem hangs
up, if no telephone is connected or if the
connected telephone is not off hook. Pressing
NO displays DO YOU WANT TO
DISCONNECT? Press YES to disconnect.
Train Timeout Modem fails to establish communication
with remote site. Default is 30 seconds
(S-register 7).
Protocol Link
Establishment Failure
Reliable mode only; failure to establish
reliable link.
Inactivity Timeout Default is 0 or disabled; select for disabled or
1 to 255 minutes (S-register 8).
Protocol Retry Limit
Exceeded
12 retransmissions of the frame.