Ericsson ZAT 19.2 Operation Manual page 59

Command sets.
+&G Online Data format
Commands: +&G0, +&G1
AT+&G0p*s| -4 On line Data format enabled.
7E1 8N1 i t y as data bit
701 8N1 Parity as data bit
8N1 8N1
BP1 +86 formal
AT+&G1 el * | Line format is locked to +S6 format
As set-up in default configuration (+&G0), the modem is
transparent to the data formats 7E1, 701 and 8N1. This means
that you may change between these formats after connection to
remote side (ex. If you use 8N1 during connection you may
change to 701 at any time after connection).
However, if you want the modem to convert the data format used
by your local DTE, you should give the command +&G1.
Example: 7
if focal DTE uses the format 8N1 and remote DTE uses the 7E1, you:
should set-up register +86 for 7E1 (See description of +S6) as
H Switch-Hook Control
Commands: HO, H1
Switch-Hook Control in asynchronous operation only. This
command causes the modem to go off line or on line.
Causes the modem to go off-line (hang up)
" | Modem connects to line (on-line)
LZTR104006 R1.00 3-21
Zat 14.4/14.4-7 and Zat 19.2/19.2-7