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UG_2901CE_027 73M29 01CE AT Command User Guide
Rev. 2.0 19
3 Extended AT Commands
3.1 @A[p] – Modify/Read MAC RAM Memory Value
@A[p].[r]? Inquire MAC RAM Memory Value
The @A[p].[r]? command requests the modem to report the current value of a specified location of MAC
RAM. The value reported is in decimal notation.
@A[p].[r]$ Inquire MAC RAM Memory Value
The @A[p].[r]$ command requests the modem to report the current value of a specified location of MAC
RAM. The value reported is in hexadecimal notation.
@A[p].[r]=[n].[n]…[n] Set MAC RAM Memory
@A[p].[r]=[n] Set MAC RAM, n = 0 to 255 (decimal) or $n = 00 to FF (hexadecimal)
The @A[p].[r]=[n] command allows you to set (modify) the value of a specified location of MAC RAM. The
value [n] can be entered in multiple instances separated by a dot in either decimal or hexadecimal
(preceded by $) notation.
3.2 @B[p] – Modify/Read IRAM Memory Value
@B[p].[r]? Inquire IRAM Memory Value
The @B[p].[r]? command requests the modem to report the current value of a specified location of IRAM.
The value reported is in decimal notation.
@B[p].[r]$ Inquire IRAM Memory Value
The @B[p].[r]$ command requests the modem to report the current value of a specified location of IRAM.
The value reported is in hexadecimal notation.
@B[p].[r]=[n].[n]…[n] Set IRAM Memory
@B[p].[r]=[n] Set MAC RAM, n = 0 to 255 (decimal) or $n = 00 to FF (hexadecimal)
The @B[p].[r]=[n] command allows you to set (modify) the value of a specified location of IRAM. The value
[n] value [n] can be entered in multiple instances in decimal or hexadecimal (preceded by $) notation.
3.3 @L[n] – Set Lease Line Operation
Lease line operation is designated by S89 bit 2
n = 1 sets lease l ine b it
n = 0 clears lease line bit
3.4 @P[n] – Alternate Pulse Dial Make/Break Ratio
The @P[n] command, where n = 0 or 1 sets S22 bit 7 to new value n. The effect of this is to toggle between
two pulse dial make break ratios. n = 0 selects U.S. (39/61). n = 1 selects U.K/Hong Kong (33/67). This
command works only when S32 and S33 are each set to 0.