LE910Cx AT Commands Reference Guide
80502ST10950A Rev. 14 Page 89 of 1904 2022-03-04
3.1.12. AT+CMOD - Call mode
This command set selects the call mode.
AT+CMOD=[<mode>]
Set command selects the call mode of further dialing commands (D) or for
next answering command (A). Mode can be either single or alternating (in
the present document, terms "alternating mode" and "alternating call"
refer to all GSM/UMTS bearer and teleservices that incorporate more than
one basic service (voice, data, fax) within one call).
When single mode is selected the call originating and hangup procedures
are similar to procedures specified in ITU-T Recommendations V.250, T.31
and T.32.
Parameter:
single mode (default mode)
+CMOD shall be set to zero after a successfully completed
alternating mode call. It shall be set to zero also after a failed
answering. The power-up, factory (&F)
and user resets (Z) shall also set the value to zero.
This reduces the possibility that alternating mode calls are
originated or answered accidentally.