3 hayes compliant at commands, 1 generic modem control, 1 set to factory-defined configuration - &f – Rainbow Electronics GM862-QUAD-PY User Manual
Page 34: 2 soft reset - z, 3 select active service class - +fclass

AT Commands Reference Guide
80000ST10025a Rev. 5 - 09/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 34 of 434
3.5.3 Hayes Compliant AT Commands
3.5.3.1 Generic Modem Control
3.5.3.1.1 Set To Factory-Defined Configuration - &F
&F - Set To Factory-Defined Configuration
SELINT 0 / 1 / 2
AT&F[<value>]
Execution command sets the configuration parameters to default values
specified by manufacturer; it takes in consideration hardware configuration
switches and other manufacturer-defined criteria.
Parameter:
<value>:
0 - just the factory profile base section parameters are considered.
1 - either the factory profile base section and the extended section are
considered (full factory profile).
Note: if parameter <value> is omitted, the command has the same
behaviour as AT&F0
Reference V25ter.
3.5.3.1.2 Soft Reset - Z
Z - Soft Reset
SELINT 0 / 1 / 2
ATZ[<n>]
Execution command loads the base section of the specified user profile and
the extended section of the default factory profile.
Parameter:
<n>
0..1 - user profile number
Note: any call in progress will be terminated.
Note: if parameter <n> is omitted, the command has the same behaviour as
ATZ0.
Reference V25ter.
3.5.3.1.3 Select Active Service Class - +FCLASS
+FCLASS - Select Active Service Class
SELINT 0 / 1 / 2
AT+FCLASS=<n>
Set command sets the wireless module in specified connection mode (data,
fax, voice), hence all the calls done afterwards will be data or voice.
Parameter:
<n>