Yeastar Technology S-Series - Page 26

Installation_Guide | 1 - Installation Guide | 26
5.
Insert the Telephony Modules on the EX08 Board.
Note: Skip this step for EX30 Board.
6.
Follow the instructions to insert a SIM card on the GSM/3G/4G module.
Note: Skip this step if no GSM/3G/4G module is installed.
7.
Close the cover and fix the screws.