SIM5300E AT Command Manual V1.02
Synchronization between DTE and DCE ensure that DTE and DCE are correctly synchronized and the baud
rate used by the DTE is detected by the DCE (= ME). To allow the baud rate to be synchronized, simply issue
an "AT" string. This is necessary when you start up the module while auto-bauding is enabled. It is
recommended to wait 3 to 5 seconds before sending the first AT character. Otherwise undefined characters
might be returned.
If you want to use auto-bauding and auto-answer at the same time, you can easily enable the DTE-DCE
synchronization, when you activate auto-bauding first and then configure the auto-answer mode.
Restrictions on auto-bauding operation
The serial interface has to be operated at 8 data bits, no parity and 1 stop bit (factory setting).
Only the strings "AT" or "at" can be detected when auto-bauding is enabled.
AT+IPR=0 setting to auto-bauding will take effect after module resets.
Unsolicited Result Codes that may be issued before the ME detects the new baud rate (by receiving the first
AT Command string) will be sent at the previously detected baud rate .The Unsolicited Result Codes "RDY"
and so on are not indicated when you start up the ME while auto-bauding is enabled.
Auto-bauding and baud rate after restart
The most recently detected baud rate cannot be stored when module is powered down.
2.2.26 AT+HVOIC Disconnect Voice Call Only
AT+HVOIC Disconnect Voice Call Only
Execution Command
AT+HVOIC
Response
Disconnect existing voice call by local TE from Command line and terminate
call with existing PPP or CSD connection on.
OK
Reference V.25 te r
To Next Page
Loading...
Need help?
General
