Western Telematic MT5634, MT9234

1-2

MT5634/MT9234 Modem; AT Command Set

You can issue several commands in one line, in what is called a command

string. The command string begins with AT and ends when you press [Enter].

Spaces to separate the commands are optional; the command interpreter

ignores them. The most familiar command string is the initialization string,

which is used to conﬁgure the modem when it is turned on or reset, or when

your communications software calls another modem.

Contents

Main Page i Table of Contents Page 1. Introduction Page 2-1 2. AT Command Summary 2-2 MT5634/MT9234 Modem; AT Command Set 3-1 3. AT Commands 3-2 Command: Ds Dial Command: DS=y Dial Stored Telephone Number Command: En Echo Command Mode Characters Command: Fn Echo Online Data Characters 3-3 Command: Hn Hook Control Command: In Information Request Command: Mn Monitor Speaker Mode Command: Nn Modulation Handshake 3-4 Command: P Pulse Dialing Command: Qn Result Codes Enable/Disable Command: Sr=n Set Register Value Command: Sr? Read Register Value 3-5 Command: Wn Result Code Options Command: Xn Result Code Selection Command: Zn Modem Reset Command: &Cn Data Carrier Detect (DCD) Control 3-6 Command: &Dn Data Terminal Ready (DTR) Control Command: &En XON/XOFF Pacing Control Command: &Fn Load Factory Settings Command: &Gn V.22bis Guard Tone Control 3-7 Command: &Ln Leased Line Operation Command: &Pn Pulse Dial Make-to-Break Ratio Selection Command: &Qn Asynchronous Communications Mode Command: &Sn Data Set Ready (DSR) Control 3-8 Command: &Tn Loopback Test (V.54 Test) Commands Command: &V Display Current Settings Command: &Wn Store Current Conguration Command: &Zy=x Store Dialing Command 3-9 Command: \An Select Maximum MNP Block Size Command: \Bn Transmit Break Command: \Kn Break Control 3-10 Command: \Nn Error Correction Mode Selection Command: \Qn Flow Control Selection Command: \Tn Inactivity Timer Command: \Vn Protocol Result Code 3-11 Command: \Xn XON/XOFF Pass-Through Command: -Cn Data Calling Tone Command: %An Adaptive Answer Result Code Enable Command: %B View Numbers in Blacklist 3-12 Command: %DCn AT Command Control Command: %En Fallback and Fall Forward Control Command: %Hn Direct Connect Enable Command: %Rn Cisco Conguration 3-13 Command: $EBn Asynchronous Word Length Command: $MBn Online BPS Speed Command: $RPn Ring Priority vs. AT Command Priority Command: $SBn Serial Port Baud Rate 3-14 Command: +VDR=x, y Distinctive Ring Report Command: #CBAn Callback Attempts Command: #CBDn Callback Delay 3-15 3-16 3.1 Escape AT Commands 4-1 4. S-Registers 4-2 MT5634/MT9234 Modem; AT Command Set 4-3 S-Registers S48=7 S48=128 Page 5. Result Codes Page 6. Remote Configuration and Country Code Configuration 6.1. Remote Configuration Page 6.2. Country Code Configuration