Ath Disconnect Existing Connection; At+Cvhu Voice Hang Up Control - Quectel EC25 Command Manual

7.3. ATH Disconnect Existing Connection

The command disconnects circuit switched data calls or voice calls. AT+CHUP is also used to disconnect
the voice call.
ATH Disconnect Existing Connection
Execution Command
ATH[n]
Maximum Response Time
Reference
V.25ter
Parameter
<n> 0

7.4. AT+CVHU Voice Hang up Control

The command controls whether ATH can be used to disconnect the voice call.
AT+CVHU Voice Hang up Control
Test Command
AT+CVHU=?
Read Command
AT+CVHU?
Write Command
AT+CVHU=<mode>
Maximum Response Time
Reference
3GPP TS 27.007
EC25&EC21_AT_Commands_Manual
Response
Disconnect existing call by local TE from command line and
terminate the call.
OK
90s, determined by network.
Disconnect existing call from command line and terminate the call
Response
+CVHU: (list of supported <mode>s)
OK
Response
+CVHU: <mode>
OK
Response
OK
ERROR
300ms
LTE Module Series
EC25&EC21 AT Commands Manual
92 / 231