N20AT Command ManualCopyright © Neoway Technology Co., Ltd 393 TCP/UDP Client Commands3.1 Setting Network APN: +NETAPNDescription To set the network APNFormat AT+NETAPN="APN","USERNAME","PASSWORD" AT+NETAPN?ParameterAPN: GPRS network access pointUSERNAME: GPRS user namePASSWORD: GPRS passwordReturn Value OKExampleAT+NETAPN="CMNET","",""OKSet GPRS APN to CMNET and leaveuser account and password blank.AT+NETAPN=CMNET,,ERRORERROR is returned because theparameter format is incorrect. A pair ofquotation marks is required for eachparameter.AT+NETAPN?+NETAPN:"","",""OKQuery the current settings of APNparameter.Remarks N/A3.2 Setting Up a PPP Link: +XIICDescription To set up a PPP linkFormat AT+XIIC= AT+XIIC?Parameter n:0: Deactivate the PPP link