ELSA, INC. MICROLINK ISDN/TL PRO Card Type ISDN TA Chip Set Unidentified I/O Options Power connector power switch, DTE port, ISDN interface (RJ-11) ISDN Data Rate 230.4Kbps ISDN Modulation Protocol V.110, V.120, X.75, PPP, T - online Error Correction/Compression MNP5, V.42bis Data Bus External [Image] CONNECTIONS Function Label Function Label AC power connector CN1 ISDN interface (RJ-11 CN3 connector) 25-pin DTE serial CN2 Power switch SW1 port DIAGNOSTIC LED(S) LED Color Status Condition PWR Unidentified On Power is on PWR Unidentified Off Power is off STS Unidentified On ISDN link is good STS Unidentified Blinking ISDN link negotiation in progress STS Unidentified Off ISDN link is broken LNE Unidentified On Connection is being established LNE Unidentified Blinking Incoming call is received, but (slow) incompatible with unit LNE Unidentified Blinking Incoming call not yet accepted (fast) LNE Unidentified Off Connection is broken TX Unidentified On MICROLINK ISDN/TL PRO is receiving data from remote or DTE TX Unidentified Off MICROLINK ISDN/TL PRO is not receiving data from remote or DTE RX Unidentified On MICROLINK ISDN/TL PRO is transmitting data from remote or DTE RX Unidentified Off MICROLINK ISDN/TL PRO not transmitting data from remote or DTE DTR Unidentified On Terminal/computer ready for operation DTR Unidentified Off Terminal/computer not ready for operation DSR Unidentified On MICROLINK ISDN/TL PRO ready for operation DSR Unidentified Off MICROLINK ISDN/TL PRO ready for operation RTS Unidentified On Sending device is enabled RTS Unidentified Off Sending device is disabled CTS Unidentified On MICROLINK ISDN/TL PRO ready to send data CTS Unidentified Off MICROLINK ISDN/TL PRO not ready to send data DCD Red On V.110, V.100 or PPP connection established DCD Green On V.120, X.75, MNP5, V.42bis error correction connection established DCD Orange On Channel building enabled DCD N/A Off ISDN modulation protocol not established TST Unidentified On MICROLINK ISDN/TL PRO is performing a self diagnostic test TST Unidentified Off MICROLINK ISDN/TL PRO is not performing a self diagnostic test SUPPORTED COMMAND SET Basic AT Commands AT, A/ A, E, V, Z &F, &V, &W Extended AT Commands \T, \X S Registers S0, S1, S2, S3, S4, S5, S12, S30 Note: See MHI Help File for full command documentation. Proprietary AT Command Set CHANNEL BUNDLING Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects channel bundling mode Command Mode &N0 Channel bundling disabled &N1 Channel bundling enabled COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects communications mode Command Mode &M0 Asynchronous mode &M1 Synchronous connect mode &M2 Synchronous connect mode and set DTR high. DATA CARRIER DETECT (DCD) Type: Configuration Format: AT [cmds] &Cn [cmds] Description: Selects whether the DCD option is enabled or disabled Command Function &C0 DCD enabled &C1 DCD enabled after carrier signal detected &C2 DCD dropped during disconnection DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high &S1 DSR indicates B-channel switched through DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Command Command State Connection Establishment Existing Connection &D1 No effect Connection establishment ISDN terminal adapter is aborted shifts to command state &D2 Existing condition Connection establishment ISDN terminal adapter terminated; stored is aborted shifts to command state; digits are cleared connection terminated &D3 Existing condition Connection establishment and ISDN terminal adapter terminated; stored is aborted and ISDN shifts to command state; digits are cleared and terminal adapter is ISDN terminal adapter is ISDN terminal adapter reinitialized reinitialized is reinitialized DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Command Function DL Re-dial last number DS=n, D/n Dial stored telephone number n DS, D/ Dial stored telephone number 0 DN Establish a modem connection DI Establish a ISDN connection D* Phone number component for controlling PBX systems D# 1TR6 protocol: Dialing code for external calls (valid for some ISDN branch exchanges) DSS1 protocol: Sending complete (additional information required in some countries) D; Store digits preceding semicolon in NVRAM and dial them when an ATO command is executed without a data connection HOOK CONTROL Type: Immediate Format: AT [cmds] Hn [cmds] Description: Selects whether the modem is on-hook or off-hook Command Function H0 Modem commanded to go on-hook (hang-up) LINE TYPE Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Selects line type Command Line Type &L0 Switched line (PSTN/Dial-up) &L1 Group 0 leased-line. Manual connection &L2 Group 0 leased-line. Automatic connection ON-LINE Type: Immediate Format: AT [cmds] On [cmds] Description: Controls on-line command (data transmission) state options. Note: The O command must be placed at the end of the command string. Command Function O0 On-line command mode enabled REACTION TO BUSY LINE/CONNECT MESSAGE Type: Configuration Format: AT [cmds] Xn [cmds] Description: Enables selection of tone detection and associated result code format options Command Function X0 Busy line reported with NO CARRIER X1 Busy line reported with NO CARRIER X2 Busy line reported with NO CARRIER X3 Busy line reported with BUSY X4 Busy line reported with BUSY REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports model number in nnn format I1 Reports ROM checksum I2 Tests and reports ROM checksum I3 Reports firmware version number and release date I4 Reports current parameter settings I5 Reports serial number I6 Reports product name and hardware release I7 Reports plug and play ID text RESULT CODES Type: Configuration Format: AT [cmds] Qn [cmds] Description: Enables modem to send result codes to the DTE Command Function Q0 Result code sending from ISDN terminal adapter enabled Q1 Result code sending from ISDN terminal adapter disabled Q2 Result code sending in answer mode disabled RTS/CTS Type: Configuration Format: AT [cmds] &Rn [cmds] Description: Selects RTS/CTS options Command Function &R0 CTS follows RTS &R1 CTS forced high, RTS is ignored. STORE NUMBERS Type: Configuration Format: AT [cmds] &Zm=n Description: Writes selected ISDN numbers n into the non-volatile memory at location m (0-9) Note: Telephone numbers can include up to 36 characters. Extended AT Command Set BIT RATE (POST CONNECTION) Type: Configuration Format: AT [cmds] \Jn [cmds] Description: Determines fixed or variable bit rate Command Function \J0 Computer line bit rate remains unchanged \J1 DTE rate matches DCE rate BIT RATE ADAPTION IN ANSWER MODE Type: Configuration Format: AT [cmds] %Ln [cmds] Description: Determines whether V.110 mode line bit rate is adapted to the bit rate of the remote system Command Function %L0 Bit rate is adapted to remote system %L1 Bit rate is adapted to remote system %L2 Bit rate is not adapted; connection is terminated %L3 Bit rate is adapted to remote system COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 V.42bis enabled %C2 V.42bis enabled %C3 V.42bis enabled CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Description: Controls the type of connection the modem will operate in Command Function \N0 V.110 normal mode enabled \N1 V.110 direct mode enabled \N2 X.75 error correction mode enabled. Connection is aborted if modem does not support X.75 \N3 X.75 error correction mode enabled. Modem fallback to V.110 if modem does not support X.75 \N4 V.120 error correction mode enabled. Connection is aborted if modem does not support V.120 \N5 V.120 error correction mode enabled. Modem fallback to V.110 if modem does not support V.120 \N6 V.120 or X.75 error correction mode enabled for incoming calls. Outgoing calls are performed with X.75 (Europe) or V.120 (America) \N7 V.120 or X.75 error correction mode enabled for incoming calls. Outgoing calls are performed with X.75 (Europe) or V.120 (America). Modem fallback to V.110 if connection cannot be established \N8 German T-Online service error correction mode enabled. VT-100 pages may be displayed with a VT-100 compatible terminal \N9 German T-Online service error correction mode enabled. Btx and KIT graphics pages may be displayed with Btx or KIT decoder \N10 HDLC transparent mode enabled (PPP conversion required) DSR/CTS CONTROL Type: Configuration Format: AT [cmds] \Dn [cmds] Description: Controls DSR and CTS lines Command Function \D0 DSR and CTS forced high \D1 DSR indicates B-channel switched through, CTS forced high \D2 DSR forced high, CTS follows DCD \D3 DSR indicates B-channel switched through, CTS follows DCD ERROR CORRECTION CONNECT MESSAGES Type: Configuration Format: AT [cmds] \Vn [cmds] Description: Determines the comprehensiveness of error correction CONNECT messages Command Function \V0 Extended result codes disabled \V1 Identifies error corrected connections \V2 Identifies error corrected connections and types \V8 Comprehensive CONNECT messages FIRMWARE UPLOAD Type: Immediate Format: AT [cmds] UPX [cmds] Description: Readies device to receive firmware upload in flash ROM at transfer rate last used, up to 57.6Kbps FIRMWARE VERSION Type: Immediate Format: AT [cmds] %V [cmds] Description: Displays firmware version of the ISDN TA on the monitor FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Description: Sets type of flow control used by TA Command Function \Q0 Flow control disabled \Q1 Bi-directional XON/XOFF flow control enabled \Q2 CTS flow control by DCE enabled \Q3 Bi-directional RTS/CTS flow control enabled \Q4 Unidirectional XON/XOFF flow control by DCE enabled \Q5 CTS flow control by DCE enabled. CTS low until connection established \Q6 Bi-directional RTS/CTS flow control enabled. CTS low until connection established ISDN BIT RATE (V.110) Type: Configuration Format: AT [cmds] %Bn [cmds] Description: Selects ISDN bit rate in V.110 mode Command Function %B1200 1200bps %B2400 2400bps %B4800 4800bps %B9600 9600bps %B19200 19.2Kbps %B38400 38.4Kbps %B48000 48.0Kbps %B56000 56.0Kbps %B64000 64.0Kbps ISDN BIT RATE (V.120, X.75, HDLC) Type: Configuration Format: AT [cmds] %Sn [cmds] Description: Selects ISDN bit rate in V.110 mode Command Function %S0 64Kbps %S1 56Kbps LINE BIT RATE Type: Configuration Format: AT [cmds] %Gn [cmds] Description: Selects line bit rate control Command Function %G0 Line bit rate determined by serial port rate %G1 Line bit rate set by %B PPP ASYNC/SYNC CONVERSION Type: Configuration Format: AT [cmds] %Pn [cmds] Description: Enables/disables asynchronous/synchronous conversion for point-to-point protocol Command Function %P0 Asynchronous/synchronous conversion for point-to-point protocol disabled %P1 Asynchronous/synchronous conversion for point-to-point protocol enabled REGISTER CONTENT DISPLAY Type: Configuration Format: AT [cmds] %Sn [cmds] Description: Selects number of registers displayed per line Command Function %R0 Display two registers per line %R1 Display one register per line STORE NUMBERS Type: Configuration Format: AT [cmds] \Pmn [cmds] Range: m = 0-9 Description: Up to ten ISDN numbers can be stored in NVRAM. Numbers n may have up to 36 characters STORED NUMBERS Type: Immediate Format: AT [cmds] \F [cmds] Description: Displays ISDN numbers stored with the /P or &Z commands Special Commands AUTOMATIC DTR DIALING Type: Configuration Format: AT [cmds] $Dn [cmds] Description: Enables/disables automatic DTR dialing Command Function $D0 DTR dialing disabled $D1 DTR dialing enabled DUMB MODE Type: Configuration Format: AT [cmds] -Hn [cmds] Description: Suppresses message echoing Command Function -H0 Normal operation -H1 Dumb mode EXTENDED CONFIGURATION PROFILE Type: Configuration Format: AT [cmds] *Wn [cmds] Description: Saves extended configuration profile Command Function *W0 Saves extended configuration profile 0 to NVRAM and values in registers, S2, S3, S4, S5 & S12 *W1 Saves extended configuration profile 1 to NVRAM and values in registers, S2, S3, S4, S5 & S12 INVALID ESCAPE MESSAGES Type: Configuration Format: AT [cmds] *Qn [cmds] Description: Enables/disables CONNECT message after invalid escape Command Function *Q0 CONNECT message after invalid escape enabled *Q1 CONNECT message after invalid escape disabled SET/DISPLAY ACCEPTED MSN Type: Configuration Format: AT [cmds] +IMSN(n, ?)=(s) [cmds] Range: n=0,1 Description: Limits acceptance to incoming calls with target MSN Command Function +IMSNn=s Store MSN +IMSNn= Clear MSN +IMSN? Display stored MSN SET/DISPLAY D CHANNEL PROTOCOL (EUROPE) Type: Configuration Format: AT [cmds] +IDP=(xxxx) [cmds] Description: Selects D channel protocol Command Function +IDP=DSS1 DSS1 protocol enabled +IDP=1TR6 1TR6 protocol enabled SET/DISPLAY D CHANNEL PROTOCOL (USA) Type: Configuration Format: AT [cmds] +IDP(?)=(xxxx, ?) [cmds] Description: Selects D channel protocol Command Function +IDP=NI-1 NI-1 protocol enabled +IDP=AT&T AT&T 5ESS protocol enabled +IDP=FV2N Group 2 leased line protocol enabled (network side) +IDP=FV2U Group 2 leased line protocol enabled (user side) +IDP? Display selected protocol +IDP=? Display implemented protocols SET/DISPLAY EAZ DIGIT Type: Configuration Format: AT [cmds] +IEAZ(?)=(n) [cmds] Range 0-19, 255 Description: Sets the EAZ terminal selection digit. Characters 0-9 will select digits 0-9, 10-19 will also select digits 0-9. 255 selects any digit for incoming calls, 0 for outgoing calls Note: Command is valid for German 1TR6 protocol only Command Function +IEAZ=n Store EAZ +IEAZ? Display EAZ SET/DISPLAY DIRECTORY NUMBER Type: Configuration Format: AT [cmds] +IDN(n, ?)=(s) [cmds] Range: n=1,2 (B-channels), s=0-9 Description: Sets and displays directory numbers. Directory number s can be up to 12 characters long Command Function +IDNn=s Set directory number +IDNn= Clear directory number +IDNn? Display directory number SET/DISPLAY MSN Type: Configuration Format: AT [cmds] +ICLI(n, ?, /)=(s) [cmds] Range: s=0 - 9 Description: Determines which multiple subscriber number is displayed to the remote side in outgoing calls as the originator address Command Function +ICLI=s Store originator MSN +ICLIn= Clear originator MSN +ICLI=/ Clear originator MSN; suppress display to remote side +ICLI? Display stored originator MSN SET/DISPLAY SPID Type: Configuration Format: AT [cmds] +ISPID(n, ?)=(s) [cmds] Range: n=1,2 (B-channels) Description: Sets and displays service profile ID Command Function +ISPIDn=s Set service profile ID +ISPIDn= Clear service profile ID +ISPIDn? Display service profile ID STORE NUMBERS FOR CLOSED USER GROUPS Type: Configuration Format: AT [cmds] +ICLD(n, ?)=(s) [cmds] Range: n=1 - 3 Description: Restricts call acceptance to remote systems Command Function +ICLDn=s Store a call number +ICLDn= Clear a call number +ICDL? Clear stored numbers VERBOSE CONNECT MESSAGES Type: Configuration Format: AT [cmds] -Mn [cmds] Description: Controls text of verbose CONNECT messages Command Function -M0 Verbose CONNECT messages dependant on AT\V -M1 Verbose CONNECT messages independent of AT\V S(status) Registers BIT-MAPPED REGISTER S14 Format: AT [cmds] S14=n [cmds] Range: 0-174 Unit: Bit-mapped Description: Controls echo, result codes and display, dial mode, and answer/originate mode. Bit Dec. Value Function 0 0 Not used 1 0 Command echo disabled 2 Command echo enabled 2 0 Result codes enabled 4 Result codes disabled 3 0 Display result codes in numeric format 8 Display result codes in verbose format 4 0 Smart mode 16 Dumb mode 5 0 Bit rate detection enabled 32 Bit rate detection disabled 6 0 Polling allowed during connection establishment 64 Polling not allowed during connection establishment 7 0 Answer mode enabled 128 Originate mode enabled BIT-MAPPED REGISTER S21 Format AT [cmds] S21=n [cmds] Range: 0-253 Unit: Bit-mapped Description: Selects jack type, CTS/DCD/DSR signals, low DTR action, and the long space disconnect function. Bit Dec. Value Function 0,1 0 Not used 2 0 CTS follows RTS 4 CTS forced high 4, 3 0 DTR signal ignored 8 Modem goes to command mode on low DTR 16 Modem disconnects on low DTR; Auto-Answer is disabled. 24 Modem is initialized on low DTR 5 0 DCD forced high 32 DCD normal 6,7 0 Not used BIT-MAPPED REGISTER S22 Format AT [cmds] S22=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Limits results codes Bit Dec. Value Function 0-3 0 Not used 6 - 4 0 Busy line reported with NO CARRIER 64 Busy line reported with NO CARRIER 80 Busy line reported with NO CARRIER 96 Busy line reported with BUSY 112 Busy line reported with BUSY 7 0 Not used BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Range: 0-111 Unit: Bit-mapped Description: Selects synchronous/asynchronous mode, and line type Bit Dec. Value Function 1, 0 0 Asynchronous mode 1 Synchronous mode 2 Synchronous operation, DTR dialing 2, 3 0 Switched line 4 Group 0 leased line, manual connection established 8 Group 0 leased line, automatic connection established 4-7 0 Not used BIT-MAPPED REGISTER S28 Format AT [cmds] S28=n [cmds] Range: 0-31 Unit: Bit-mapped Description: Controls V.110 rate adaption Bit Dec. Value Function 0, 1 0 Not used 2, 3 0 V.110 bit rate adaptation enabled 4 V.110 bit rate adaptation enabled 8 V.110 bit rate adaptation disabled 12 V.110 bit rate adaptation enabled 4-7 0 Not used BIT-MAPPED REGISTER S31 Format AT [cmds] S31=n [cmds] Unit: Bit-mapped Description: Enables/disables DTR dialing Bit Dec. Value Function 0-4 0 Not used 5 0 DTR dialing enabled 32 DTR dialing disabled 6, 7 0 Not used BIT-MAPPED REGISTER S36 Type: Register Format AT [cmds] S36=n [cmds] Description: Selects the action of the modem if it fails to connect with the error-correction protocol set in &Q. Bit Dec. Value Function 0-3 0 Normal mode (V.110) 1 Direct mode (V.110) 2 X.75 mode 3 X.75; fallback to V.110 mode 4 V.120 mode 5 V.120; fallback to V.110 mode 6 X.75 or V.120 mode 7 X.75 or V.120; fallback to V.110 mode 8 X.75 VT-100 mode (German T-Online service) 9 X.75 CEPT & KIT mode (German T-Online service) 4-6 0 Reserved 7 0 Channel bundling disabled 128 Channel bundling enabled BIT-MAPPED REGISTER S37 Type: Register Format AT [cmds] S37=n [cmds] Description: Sets the maximum allowable ISDN line bit rate in V.110 operation Bit Dec. Value Function 0-4 5 ISDN line bit rate at 1200bps 6 ISDN line bit rate at 2400bps 7 ISDN line bit rate at 4800bps 9 ISDN line bit rate at 9600bps 13 ISDN line bit rate at 19.2Kbps 21 ISDN line bit rate at 38.4Kbps 22 ISDN line bit rate at 48.0Kbps 23 ISDN line bit rate at 56.0Kbps 24 ISDN line bit rate at 64.0Kbps 5 0 Reserved 6 0 ISDN bit rate depends on serial port rate 64 ISDN bit rate determined by %B 7 0 Fixed serial port rate 128 serial port rate adapted to ISDN line rate BIT-MAPPED REGISTER S46 Type: Register Format: AT [cmds] S46=n [cmds] Description: Selects active error correction and compression protocols Bit Dec. Value Function 0-3 0 Data compression disabled 1 V.42bis data compression enabled 2 V.42bis data compression enabled 3 V.42bis data compression enabled 4-7 0 Reserved BIT-MAPPED REGISTER S51 Type: Register Format AT [cmds] S51=n [cmds] Description: Sets flow control options Bit Dec. Value Function 0-3 0 No handshake 1 Bi-directional XON/XOFF flow control enabled 2 Unidirectional RTS/CTS flow control enabled 3 Bi-directional RTS/CTS flow control enabled 4 Unidirectional XON/XOFF flow control by DCE enabled 5 CTS flow control by DCE enabled. CTS low until connection established 6 Bi-directional RTS/CTS flow control enabled. CTS low until connection established 4 0 XON/XOFF remote passthrough disabled 16 XON/XOFF remote passthrough enabled 5-7 0 Reserved BIT-MAPPED REGISTER S52 Type: Register Format AT [cmds] S52=n [cmds] Description: Sets DSR, CTS, DCD options Bit Dec. Value Function 0, 1 0 DSR forced high, CTS forced high 1 DSR indicates B-channel switched through, CTS forced high 2 DSR forced high, CTS follows DCD 3 DSR indicates B-channel switched through, CTS follows DCD 2, 3 0 DCD either forced high, or indicates existing connection ( depending on S21) 8 DCD off for .5 seconds during connection 4,5 0 DSR forced high, CTS forced high 32 DSR indicates B-channel switched through, CTS forced high 6,7 0 CTS determined by \D 64 CTS follows RTS 128 CTS follows RTS after .5…6 seconds BIT-MAPPED REGISTER S87 Type: Register Format AT [cmds] S87=n [cmds] Description: Read only register. Reports current bit rate Bit Dec. Value Function 0-4 0 No connection established 4 ISDN line bit rate at 1200bps 6 ISDN line bit rate at 2400bps 7 ISDN line bit rate at 4800bps 9 ISDN line bit rate at 9600bps 13 ISDN line bit rate at 19.2Kbps 21 ISDN line bit rate at 38.4Kbps 22 ISDN line bit rate at 48.0Kbps 23 ISDN line bit rate at 56.0Kbps 24 ISDN line bit rate at 64.0Kbps 5 0 One-channel connection 32 2nd ISDN connection with 128/112Kbps (2nd B-channel with 56/64Kbps) 6, 7 0 Reserved BIT-MAPPED REGISTER S93 Type: Register Format AT [cmds] S93=n [cmds] Description: Determines serial port bit rate Bit Dec. Value Function 0-4 0 No connection established 5 Serial port bit rate at 1200bps 6 Serial port bit rate at 2400bps 7 Serial port bit rate at 4800bps 9 Serial port bit rate at 9600bps 13 Serial port bit rate at 19.2Kbps 21 Serial port bit rate at 38.4Kbps 22 Serial port bit rate at 48.0Kbps 23 Serial port bit rate at 56.0Kbps 24 Serial port bit rate at 64.0Kbps 5 0 Reserved 6, 7 0 Data format 8N1 64 Data format 7E1 128 Data format 7O1 192 Data format 7N2 BIT-MAPPED REGISTER S95 Type: Register Format AT [cmds] S95=n [cmds] Description: Determines result codes Bit Dec. Value Function 0-3 0 No modified CONNECT messages 1 Indicates error-corrected connections 2 Indicates error-corrected connections and error correction method 8 Extensive CONNECT result codes 4 0 CONNECT messages with bit rate 16 CONNECT messages without bit rate 5 0 CONNECT messages after invalid escape sequence 32 No CONNECT messages after invalid escape sequence 6, 7 0 Result codes enabled or disabled (depending on S14) 128 Result codes disabled in answer mode BIT-MAPPED REGISTER S96 Type: Register Format AT [cmds] S96=n [cmds] Description: Sets AT command interpreter Bit Dec. Value Function 0,1 0 Reserved 2 0 Message ‘Press any key to continue’ enabled 4 Message ‘Press any key to continue’ disabled 3,4 0 German user interface (European default) 8 English user interface (US default) 16 Reserved 24 Reserved 5,6 0 Reserved 7 0 Disable error message for access of invalid or protected S register (® OK) 128 Enable error message for access of invalid or protected S register (® ERROR) BIT-MAPPED REGISTER S151 Type: Register Format AT [cmds] S151=n [cmds] Description: Controls ISDN D channel Bit Dec. Value Function 0 0 Send error result code to network if device is busy or not ready 1 Do not send error result code to network if device is busy or not ready 1 0 Incoming calls confirmed with ALERT 1 No ALERT for incoming calls 2 0 V.120: LLC (low layer capability) not signaled in D-channel 4 V.110: BC (bearer capability) and LLC not signaled in D-channel V.120: LLC (low layer capability) signaled in D-channel V.110: BC (bearer capability) and LLC signaled in D-channel 3 0 Reserved 4 0 Incoming calls on B-channel 1 will be accepted 16 Incoming calls on B-channel 1 will be ignored 5 0 Incoming calls on B-channel 2 will be accepted 32 Incoming calls on B-channel 2 will be ignored 6,7 0 Reserved BIT-MAPPED REGISTER S153 Type: Register Format AT [cmds] S153=n [cmds] Description: Controls CONNECT/NO CARRIER message options Bit Dec. Value Function 0 0 Remote number is not displayed after CONNECT 1 Remote number is displayed after CONNECT 1 0 Remote number is not displayed after RING 2 Remote number is displayed after RING 2 0 MSN/EAZ dialed by the remote side is not displayed 4 MSN/EAZ dialed by the remote side is displayed if bit 0 and/or 1=1 3-5 0 Reserved 6 0 Result codes are not displayed 64 Result codes are displayed 7 0 Disconnect reason not displayed 128 Disconnect reason reported after NO CARRIER according to S154/S155 BIT-MAPPED REGISTER S158 Type: Register Format AT [cmds] S158=n [cmds] Description: Controls CONNECT/NO CARRIER message options Bit Dec. Value Function 0 00 No connection was established 01 Current/last connection on B-channel 1 02 Current/last connection on B-channel 2 BIT-MAPPED REGISTER S159 Type: Register Format AT [cmds] S159=n [cmds] Description: Shows current status of ISDN interface Bit Dec. Value Function 0 0 No power on S0 bus detected 1 Normal or restricted power on S0 bus 1 0 Reserved 2 0 S0 bus not activated 4 S0 bus activated 3 0 No TEI assigned 8 TEI assigned 4-7 0 Reserved BIT-MAPPED REGISTER S160 Type: Register (read only) Format AT [cmds] S160=n [cmds] Description: Shows information about last call on ISDN interface Value (Hex) Function 00h No incoming call 10h Call is currently being reported 11h Call accepted 12h Call withdrawn or answered by another device on the S0 bus 20h Call had wrong bearer capability or service indicator 21h Call had wrong MSN or EAZ 30h DTR was off, call was rejected 31h ISDN adapter was already connected or establishing another connection 40h Number check not OK 41h Number check not OK, no number was given BIT-MAPPED REGISTER S162 Type: Register Format AT [cmds] S162=n [cmds] Description: Selects preferred B-channel Bit Dec. Value Function 0,1 0 Any B-channel is used: Leased line operation: B1 channel is used 1 B1 channel has priority 2 B2 channel has priority BIT-MAPPED REGISTER S171 Type: Register Format AT [cmds] S171=n [cmds] Description: Specifies details of X.75 protocol Bit Dec. Value Function 0-2 0 Data block size 128 bytes 1 Data block size 256 bytes 2 Data block size 512 bytes 3 Data block size 1024 bytes 4 Data block size 2048 bytes 3 0 Reserved 4 0 Async/sync conversion for PPP disabled 16 Async/sync conversion for PPP enabled 5 0 64Kbps (Europe default) 32 56Kbps (US default) 6,7 0 T.70NL header disabled 64 T.70NL header disabled 128 T.70NL header enabled. Block size reduced by 2 bytes 192 T.70NL header enabled. Block size extended by 2 bytes BIT-MAPPED REGISTER S172 Type: Register Format AT [cmds] S172=n [cmds] Description: Specifies details of V.120 protocol Bit Dec. Value Function 0 0 Data block size 127 bytes 1 Data block size 259 bytes 1-6 0 Reserved 7 0 64Kbps (Europe default) 128 56Kbps (US default) BIT-MAPPED REGISTER S173 Type: Register Format AT [cmds] S173=n [cmds] Description: Specifies details of V.110 protocol Bit Dec. Value Function 0 0 Reserved 1-2 0 No parity, asynchronous 2 Odd parity, asynchronous 4 Even parity, asynchronous 6 "1" parity, asynchronous 3 0 RTS, DCD, DSR normal operations 8 V.110 half duplex operation, asynchronous 4 0 Bit rate tolerance 12.5%, asynchronous 16 Bit rate tolerance 25%, asynchronous 5 0 1 stop bit, asynchronous 32 2 stop bit 2, asynchronous 6-7 0 8 bits/character, asynchronous (no parity bit) 64 7 bits/character, asynchronous (no parity bit) 128 6 bits/character, asynchronous (no parity bit) 192 5 bits/character, asynchronous (no parity bit) BIT-MAPPED REGISTER S175 Type: Register Format AT [cmds] S175=n [cmds] Description: Controls additional settings for channel bundling Bit Dec. Value Function 0,1 0 Reserved 2 0 Static channel bundling (second B-channel always active) 4 Dynamic channel bundling (second B-channel active when needed) 3 0 Connection hold time starts when throughput falls below limit 8 Connection hold time starts with each charge unit 4 0 Secondary connection with the same number as primary connection 16 Secondary connection with the same number as primary connection without SPC flag 5 0 Supplied number not required for identification of second B-channel 32 Supplied number required for identification of second B-channel 6 0 CONNECT reported after primary connection establishment 64 CONNECT reported after secondary connection establishment 7 0 Normal DSR function 128 DSR off when secondary connection established CALL INDICATION DELAY Type: Register Format AT [cmds] S152=n [cmds] Range: 0-50 Unit: 10ms Description: Sets the delay for indication of incoming calls CHANNEL BUNDLING HOLD TIME Type Register Format AT [cmds] S178=n [cmds] Range 0-255 x 10 Unit 10sec Description Defines amount of time the second B channel is held after the throughput falls below the limit set in register S176. Register used only if bit 2 of Register S175 is set. CHANNEL BUNDLING THROUGHPUT AVERAGING Type Register Format AT [cmds] S177=n [cmds] Range 0-32 Unit 1sec Description Defines time over which the average data throughput is calculated in order to smooth fluctuations throughout. Default=0 CHANNEL BUNDLING THROUGHPUT LIMIT Type Register Format AT [cmds] S176=n [cmds] Range 0-255 x 100 Unit 100 bytes/sec Description Defines data throughput limit that must be exceeded for second B-channel to be established. Register used only if bit 2 of Register S175 is set. CHARGE UNITS - CURRENT (EUROPE) Type Register Format AT [cmds] S191=n [cmds] Range 10 Unit ASCII Description Contains number of charge units or total charge for current or last connection CHARGE UNITS - TOTAL (EUROPE) Type Register Format AT [cmds] S192=n [cmds] Range 10 Unit ASCII Description Contains total number of charge units or total charge for all previous connections. 0 resets register CHARGED UNITS Type Register Format AT [cmds] S167=n [cmds] Range 0-255 Unit 10 Description Sets the maximum number of charged units which my be used within a certain number of days set in register S168 DATA PACKET REPITITIONS RECEIVED Type: Register Format AT [cmds] S156=n [cmds] Range: 0-255 Description: Shows the ratio of repetitions per 250 data packets received on the control channel DATA PACKET REPITITIONS SENT Type: Register Format AT [cmds] S157=n [cmds] Range: 0-255 Description: Shows the ratio of repetitions per 250 data packets sent on the control channel ERROR CODES (EURO-ISDN) Type: Register (read only) Format AT [cmds] S165=n [cmds] Description: Displays detailed error codes ERROR LOCATION Type: Register (read only) Format AT [cmds] S154=n [cmds] Description: Error code indicates location where the error occurred. Error codes unidentified ERROR REASON Type: Register (read only) Format AT [cmds] S155=n [cmds] Description: Error code indicates reason for failure. Error codes unidentified LAST CALL MSN/EAZ Type Register Format AT [cmds] S193=n [cmds] Range 10 Unit ASCII Description Contains the multiple subscriber number (MSN, with DSS1 protocol) or the EAZ (terminal selection digit, with 1TR6 protocol) dialed by remote side for last incoming call. 0 clears register LEASED LINE CONNECTION DELAY Type: Register Format AT [cmds] S40=n [cmds] Range: 5-255 Unit: 10 secondS Description: Controls the amount of time before the ISDN terminal adapter automatically establishes a group 0 leased line connection REMAINING CHARGED UNITS Type Register Format AT [cmds] S169=n [cmds] Range 0-255 Unit 10 Description Holds the number of charged units which can still be used in the cost monitoring period. 0 disables REMAINING TIME PERIOD Type Register Format AT [cmds] S170=n [cmds] Range 0-255 Description Holds the number of days remaining until the number of charged units is reset to the maximum limit set in S167. REMOTE NUMBER Type Register Format AT [cmds] S190=n [cmds] Range 36 Unit ASCII Description Contains ISDN number of current or last remote system. 0 resets register SERVICE INDICATOR Type: Register (read only) Format AT [cmds] S163=n [cmds] Description: Shows service indicator of last incoming call. 007 indicates a bit rate adaptation to 56Kbps. Otherwise, the data transfer occurred at 64Kbps. SERVICE INDICATOR Type: Register (read only) Format AT [cmds] S164=n [cmds] Description: Shows service indicator of last incoming call. 169 indicates a bit rate adaptation to 56Kbps. Otherwise, the data transfer occurred at 64Kbps. TIME PERIOD FOR COST MONITORING Type Register Format AT [cmds] S168=n [cmds] Range 0-255 Description Sets the maximum number of days the charged units set in S167 may be used