Connecting to a Leased Line 35

Line Type Setting 35

Power Level Setting 36

Leased Line Handshaking 36

Manual Connect 36

Auto Handshake 36

Leased-Line Dial Backup 37

Dial Backup 37

Aborting from Leased-Line Operation 38

Terminating a Leased Line Connection 38

6 Special Functions 39

Security Functions 39

Levels of Security 39

User Passwords 40

Remote Configuration 42

Caller Number Delivery (Caller ID) 43

Distinctive Ring 46

Extended Distinctive Ring (EDR) 47

Setting Up EDR 49

EDR Application Example 50

7 Fax Operation 53

Modem as Fax Machine 53

ITU-T T.30 Fax Protocol 54

Fax Command sets 54

Defining the Fax Command Sets 54

Class 1 Command Set 55

Class 2 Command Set 56

Class 2.0 Command Set 63

Extended Fax AT Command Set 70

Flow Control 74

Fax Reception from a BBS 75

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ZyXEL Communications U-336R/RE manual Special Functions, Fax Operation