... 1. In the sub-menu, press Up or Down key to move the cursor to GPRS APN, then press Menu key.2 ... :1. In the sub-menu, press Up or Down key to move the cursor to GPRS IP, then pressMenu key.2. ... 1. In the sub-menu, press Up or Down key to move the cursor to GPRS Port, then press Menu key.2 ... print is over, GPRS Printer will send beep tone to remind operator to make a further confirm5-1-2-1 Press Accept key ...