3Com 3C421600A Management Manual page 157

Originating HDLC 64 Kbps and 56 Kbps Protocols
Use Table 47 to control the originating High-level Data Link Control
(HDLC) 64 Kbps and 56 Kbps protocols:
Table 47 HDLC 64Kbps and 56 Kbps Protocols
Setting
None
V.120
X.75
PPP
Originating Non-HDLC Protocols
Use the commands in Table 48 to control the originating non-HDLC 64
protocols.
Table 48 Non-HDLC 64 Protocols
Setting
None
V.110
Originating Analog Modem Mode
Use the commands in to control the originating analog modem mode.
Table 49 Originating Analog Call Type
Setting
None
Analog Modem
Command
*U1=0
*U1=1
*U1=2
*U1=3
Command
*U2=0
*U2=1
Command
*U3=0
*U3=1
Configuring ISDN 155