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Cellular AT Command extensions in support of voice services commands allow the data terminal to
be used as an automatic dialer for voice calls. The format of these commands is shown in Table
10.7.
Table 10.7: Cellular AT Command Extensions in Support of Voice Services
Command Description
+CHV<value>
Hang Up Voice
0: Hang up voice call
1-255: Reserved
+CDV<dial string> Dial Command For Voice Calls
The format of <dial string> is identical to that for the ATD command.
This command does not cause the MT2 to change to the online state.