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6.3 GSM
07.07
6.3.1 +CSTA Select type of address
Command Response
Default
Set
+CSTA=<type
>
129
Read
+CSTA? +CSTA:
<type>
Test
+CSTA=?
+CSTA: (129, 145)
The +CSTA command selects the type of number according to GSM specifications. The dial
command D always uses this setting, except for when the dial string includes the
international access code character (+). In this case, the type of address sent to the network
defaults to 145.
Defined values
<type> type of number, refer to GSM 04.08 10.5.4.7:
129 Unknown/telephony
145 International/telephony
6.3.2 +CMOD Call mode
Command Response
Default
Set
+CMOD=<m
ode>
0
Read
+CMOD? +CMOD:
<mode>
Test
+CMOD=? +CMOD:
(0-3)
The +CMOD command selects the call mode of the next dialling commands (D) or for the
next answering command (A). The mode can either be single or alternating. When single
mode is selected, the call originating and hang up procedures are similar to the procedures
specified in the ITU-T Recommendations V.25ter, T.31 and T.32. In the GSM system, voice
calls can be followed by alternating voice/data and alternating voice/fax calls.
NOTE: The +CMOD should be set to zero after a successfully completed alternating mode
call. It should also be set to zero after a call has not been answered. The power-up, factory
(&F) and user resets (Z) should also set the value to zero. This reduces the possibility of
accidentally originating or answering alternating mode calls.
NOTE: Alternating call answering operations from an external UI may change the +CMOD
values.