Fibocom G510 - 5.1.4 H, Hang-up Call

G5/G6-Family AT Commands User Manual Page
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The following table shows the DL parameters.
Note:
When ATDL is issued after a dialed number with comma digit:
ATDL; dials the exact number that was last dialed, including the DTMF tones sent.
If ATDL is sent before any Dial command was issued (mainly after Power On, when the last number is an
empty field), the Module will return NO CARRIER, as mentioned in the ITU V.25-ter standard.
CCFC（*#21#）,CCWA（*#43#）,CLIP（*#30#）,CLIR(*#31#),COLP(*#76#) will be treat as call number
and dail it again.
Example:
atdl;
ATDL: 035658278;
OK
OK //VOICE call
5.1.4 H, Hang-up Call
This command hangs up a call. The Module terminates the call whether it is a voice call, and whether it is
an incoming, originating, waiting, or connected call.
A NO CARRIER message is returned to the terminal before the regular OK approval.
To terminate a held Voice call or to terminate a call out of a MTPY call, refer to “+CHLD, Call Related
Supplementary Services Command” .
The following table shows the call states of the H command.
Call State
Response/Action
IDLE
Error ("operation not allowed")
Single Active
Call released
MTPY Active
Call released (all calls)
Incoming call (RING)
Call released
Single Active and Waiting Call
Single Active released (waiting not affected)
MTPY Active and Waiting Call
MTPY Active released (waiting not affected)
Single (or MTPY) Active and Single (or MTPY) Held
Single (or MTPY) Active released
Held (Single or MTPY) and Waiting Call
Waiting call released