3Com ISDN Modem manual Isdn

		S Registers	B-5
Table B-2	S Registers (continued)
Registers	Descriptions
S58	Terminal Initialization State:
	Indicates the status of the second TEI using SPID 2. This information is
	provided only if your carrier requires a second directory number. This field is
	read-only.
	0	— ISDN modem has not attempted initialization
	1	— ISDN modem has initialized successfully using SPID 2
	2	— ISDN modem has failed initialization using SPID 2
S59	U Interface Status:
	This field is read-only.
	0	— ISDN U interface is not synchronized with the switch
	1	— ISDN U interface is synchronized and ready
S60*	B Channel Data Rate:
	56 — 56 Kbps (default)
	64 — 64 Kbps
S61	Outgoing Call Type:
	0	— Follow dial modifiers (default)
	1	— Tollmizer (Switched 56 Permissive or Data Over Voice)
	2	— ISDN