Specifications

AT Commands and Result Codes
◆
◆◆
◆
60
AT &T<n> Diagnostic test control - Selects the test mode.
n=0: Terminates any test in progress.
n=1: Initiates Local Analog Loopback test.
n=3: Initiates Local Digital Loopback test.
n=4: Grants all requests for a Remote Digital Loopback test.
n=5: Denies all requests for a Remote Digital Loopback test.
n=6: Initiates Remote Digital Loopback test.
n=7: Initiates Remote Digital Loopback Self-test.
n=8: Initiates Local Analog Loopback Self-test.
n=5
AT &V Reports the current configuration, the stored (user) profiles, and the first four stored
telephone numbers.
—
AT &W<n> Stores the current configuration profile in the modem’s non-volatile memory.
n=0: Stores the current configuration profile as profile 0.
n=1: Stores the current configuration profile as profile 1.
—
AT &Y<n> Selects the default user profile.
n=0: Selects profile 0 as the default user profile.
n=1: Selects profile 1 as the default user profile.
n=0
AT &Z<n>=<x> Stores telephone number x to location n. x can have up to 34 characters. n=1
AT %E<n> Controls line-quality monitor and auto-retrain.
n=0: Disables line-quality monitor and auto-retrain.
n=1: Enables line-quality monitor and auto-retrain.
n=2: Enables line-quality monitor and fallback/fall forward.
n=2
AT %L Returns the received line-signal level. —
AT %Q Returns the line-signal quality. —
AT \K<n> Controls how the modem interprets and transmits BREAK instructions, as follows:
From Remote - From DTE(Reliable Mode) - From DTE(Normal Mode)
n=0: Now/Dump - Command - Break/Command
n=1: Now/Dump - Now/Dump - Send
n=2: Now/Save - Command - Break/Command
n=3: Now/Save - Now/Save - Send
n=4: Data/Break - Command - Break/Command
n=5: Data/Break - Data/Break - Send
n=5
AT \N<n> Selects the error-correction mode.
n=0: Normal mode (includes speed buffering).
n=1: Direct mode (without speed buffering).
n=2: V.42 reliable mode with fallback to MNP - V.42 or MNP only.
n=3: Autoreliable mode - V.42, MNP or normal.
n=4: V.42 reliable mode - V.42 only.
n=5: MNP reliable mode - MNP only.
n=3
Command Function Default