56/1138.2.3 S2 Escape code characterCommand Response valuesset S2= 0..127 (default 43)read S2? 000..127Optional. Default character is a plus sign. See also Escape sequence.8.2.4 S12 Escape guard timeCommand Response valuesset S12= 0..255 (default 50)read S12? 000..255Optional. Value is in fiftieths of a second (default is one second). See also Escape sequence.8.2.5 Escape sequenceMandatory. During online data state, online command state can be entered by giving threesame characters (defined by S2 register; default is ë+í) in a sequence. Before and after thesequence there must be a pause of at least the time defined by S12 register. By setting S12to zero, escape sequence detection can be disabled.During GPRS online data state, the escape sequence is handled similarly as of DTR OFFwould have been seen. This enhancement implements an alternative way to terminate aGPRS DUN connection.8.3 GSM 07.078.3.1 +CSTA Select type of addressCommand Response Defaultset +CSTA= 129read +CSTA? +CSTA: test +CSTA=? +CSTA:(128-255)Mandatory when other than default value allowed. 07.07 section 6.1. Dial command D usesalways this setting except when dial string includes the international access code character(+). In this case the type of address sent to the network defaults to 145(international/telephony).