does EM7431 module support volte in softbank japan? if not, which module can work ?
no, there is no voice function mentioned here:
Oh thank you , so which module I can use in japan softbank that supports volte
is that you must use Softbank? how about carrier like KDDI and Docomo?
If those carrier is OK, you can see this:
yes dear i need to use softbank japan volte
then i don’t quite see any choice available
WP7605 is for data only as mentioned here: