Lenovo ThinkPad T520 (English) User Guide - Page 85

Table 3. Modem command list (continued) Command Description Syntax +PSS Use Short Sequence +PSS= -QCPC -QCPS Force Full Startup Procedure Next Connection Enable Quick Connect Profile Save -QCPC -QCPS= Values 0: The modem decides whether or not to use the short startup procedures. 1: Reserved. 2: Force the use of the full startup procedures on the next and subsequent connections independent of the setting of the +PQC command. 0: Do not allow the quick connect profile to be saved. 1: Allow the quick connect profile to be saved. Modem result codes The following table lists the basic codes that the modem sends to your computer in response to the commands you enter. They are called result codes. Table 4. Modem result codes Numeric +F4 Result code +FCERROR 0 OK 1 CONNECT 2 RING 3 NO CARRIER Description High speed fax data (V.27, V.29, V.33, or V.17) is expected but a V.21 signal is received. A command line has been executed. For X command values specifying no speed reporting, the modem has connected to the line and either the line speed is 300 bps and line speed is enabled, or the DTE speed is 300 bps and DTE speed reporting is enabled. An incoming ring signal is detected on the line. What qualifies as a ring signal is determined by country-dependent parameters, modifiable through ConfigurACE. When cellular interface is selected, RING indicates that the cellular phone is receiving an incoming call. Sent when attempting to establish a call if: Ringback is detected and later ceases but no carrier is detected within the period of time determined by register S7, or 1. No ringback is detected within the period of time determined by register S7. 2. Also sent when the modem auto-disconnects due to loss of carrier. For X0, sent for the following conditions: 1. If busy tone detection is enforced, busy or circuit busy has been detected. Chapter 2. Using your computer 67