Netgear 340U AT Command Reference - Page 37

7: Supported GSM/WCDMA AT Commands 7 This chapter identifies standard AT commands that are supported by most NETGEAR AirCard devices. These commands: • Control serial communications over an asynchronous interface (ITU-T Serial Asynchronous Dialling and Control (Recommendation V.250), available on the International Telecommunication Union web site, www.itu.int). See Table 7-1 below. • Control SMS functions for devices on GSM/WCDMA networks (3GPP TS 27.005, available on the 3GPP web site, www.3gpp.org) See Table 7-2 on page 39. • Control devices operating on GSM/WCDMA networks (3GPP TS 27.007, available on the 3GPP web site, www.3gpp.org) See Table 7-3 on page 40. The tables below identify whether each command is supported on NETGEAR UMTS devices. An "N/A" in the Supported column of the table indicates that the command is related to a feature (such as voice) that is not available on the modems. Commands that are partially supported include descriptions identifying any limitations on command usage. Also, some commands are described in more detail in later chapters-the descriptions for these commands link to those detailed entries (for example, &V in Table 7-1 on page 37). Table 7-1: Supported ITU-T Recommendation V.250 AT commands Command Description Supported =Yes; =No &C Set Data Carrier Detected (Received line signal detector) function  mode &D Set Data Terminal Ready function mode  &F Set all current parameters to manufacturer's defaults  &S Set DSR signal  &T Auto tests  &V Return operating mode AT configuration parameters  &W Store current parameter to user-defined profile  +CSS Serving System Identification  Return serving system band and SID in the format ",,". +CTA MT-terminated asynchronous data calls  Returns packet data inactivity timer. Rev 1 Sep.13 Proprietary and Confidential 37