Call wismo 218


#1

how to tell if there is an incoming call during a conversation already in progress?


#2

Hi,

Are you referring to an incoming voice call when MO/MT voice call already in progress?
If so, please first make sure call waiting feature is supported by carrier SIM, then use +CCWA to enable the feature in module and use +CHLD to switch between both parties.

Kindly refer to AT command guide for details.
Thx


#3

CONTINUOUS NOT SEE THE SECOND INCOMING CALL


#4

Hi,

The topic has been moved to the correct section.

Thanks


#5

Sorry for come back lately.

In my case, using wismo228, I can see RING when call is already in progress, and I am able to switch both call using +CHLD.

AT+CCWA=0

OK

RING
ata

OK

RING

RING

So, what’s the exact issue on your side?
Have you confirmed that your SIM subscription support call waiting feature or multiple call?