Japan Softbank volte

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: