Black Box 3600 MODEM Reasons for Call Termination, Reasons for Call Terminatio n Condition

Getting Started

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	Default 30 sec; select 1 to 255 sec
(No answer, busy sig-	(S-register 7).
nal, no modem, etc.)
ATH	Disconnect command.
Loss of Carrier	Select 100 ms to 25.5 sec (S-register 10).
Disconnect
Receive Long Space	Disabled or select 2 sec.
Disconnect
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	Reliable mode only; failure to establish
Establishment Failure	reliable link.
Inactivity Timeout	Default is 0 or disabled; select for disabled or
	1 to 255 minutes (S-register 8).
Protocol Retry Limit	12 retransmissions of the frame.
Exceeded

3-4 Modem 3600