... ainternet order 3. GPRS communication mode Customized Portable Wireless GPRS SMS Printers Hardware Instruction Pull to open the ... v, T, U, V, 89 key:w, x, y, z, W, X, Y, Z, 9* key: special symbol0 key: ... to save the settings and exitNote: if wrong input, press Delkey to delete the last number(3) ... info,Referencing to APN settingsFor GPRS connection, must input APN, IP, Printer ID and Port.Settings for ...