openvox VS-GWM400 not recognize sim

I plug a sim into a module and I do not see it on the site

Hi, sir
you mean "Registration Status " of the sim card module is "Undetected "?
if the card works normal after insert mobile phone?
please try to insert the sim card to other card slot and check the antenna.
byw, you can add my skype :[email protected] for convenient contact and i will answer you after 4th May because of vacation.

i try to insert the sim card to other card slot And still does not see anything

Hello，

Sorry about your issue ,Please make sure you correctly insert the SIM card first . And make sure your site support 2G . You also can add my skype upper.hua . I will check it for you remotely .