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ZyXEL Communications Omni 56K II User Manual

Voice/fax/data modem
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Omni 56K II and Omni 56K
Plus II
Voice/Fax/Data Modem
User's Guide
Version 1.0
August 2002

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Summary of Contents for ZyXEL Communications Omni 56K II

  • Page 1 Omni 56K II and Omni 56K Plus II Voice/Fax/Data Modem User's Guide Version 1.0 August 2002...

  • Page 2: Copyright

    Trademarks ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL Communications, Inc. Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.

  • Page 3: Zyxel Limited Warranty

    Omni 56K II and Omni 56K Plus II User’s Guide ZyXEL Limited Warranty ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon...

  • Page 4: Customer Support

    Omni 56K II and Omni 56K Plus II User’s Guide Please have the following information ready when you contact customer support. • Product model and serial number. • Warranty Information. • Date that you received your device. • Brief description of the problem and the steps you took to solve it.

  • Page 5: Table Of Contents

    Chapter 1 Getting To Know Your Modem ... 1-1 The Omni 56K II and Omni 56K Plus II Modem ... 1-1 Features of the Omni 56K II and Omni 56K Plus II Modem ... 1-1 Chapter 2 Installation ... 2-1 Panel Descriptions...
  • Page 6 Omni 56K II and Omni 56K Plus II Capability ...3-4 Data Function...3-4 Flow Control...3-5 Hardware CTS/RTS Flow Control...3-5 Software XON/XOFF Flow Control...3-6 3.10 Error Control...3-6 3.11 Data Compression...3-6 3.12 Repeat Dial ...3-6 3.13 Cyclic Dial ...3-6 3.14 Caller Number Delivery (Caller ID) ...3-7 3.15...
  • Page 7 Omni 56K II and Omni 56K Plus II User’s Guide Index ...A Table of Contents...

  • Page 8: List Of Figures

    Omni 56K II and Omni 56K Plus II User’s Guide List of Figures Figure 2-1 Omni 56K Plus II Rear Panel and Connections ...2-2 Figure 2-2 Windows 98 Add New Hardware Wizard...2-4 Figure 2-3 Windows Me Add New Hardware Wizard ...2-5 Figure 2-4 Windows 2000 Found New Hardware Wizard ...2-5...
  • Page 9 Omni 56K II and Omni 56K Plus II User’s Guide List of Tables Table 2-1 Front Panel LEDS For Omni 56K Plus II... 2-1 Table 2-2 Front Panel LEDs for Omni 56K II ... 2-1 Table 2-3 Back Panel Description... 2-2 Table 3-1 Hardware Specifications ... 3-1 Table 3-2 Firmware Specifications ...
  • Page 10 Omni 56K II and Omni 56K Plus II User’s Guide Table 5-14 Voice Shielded DTE Responses ...5-24 Table 5-15 Basic S-Registers "ATSn=x"...5-25 Table 5-16 Extended S-Registers "ATSn=x"...5-26 Table 7-1 Troubleshooting...7-1 List of Tables...

  • Page 11: Preface

    For brevity's sake, we will use "e.g." as shorthand for "for instance" and "i.e." for "that is" or "in other words" throughout this manual. The Omni 56K II and Omni 56K Plus II may be referred to as the modem or the device in this manual. Preface...

  • Page 13: Chapter 1 Getting To Know Your Modem

    ZyDAS Fifth Generation Data Pump with V.92 Capability The Omni 56K II and Omni 56K Plus II modems provide the v.92 quick connect feature. This feature can shorten the modem handshaking time and therefore reduces the wait time and associated dial-up cost for each new connection.

  • Page 14: Automatic Data/Fax Call Detection

    Support Fax Class 1, Class 2 and Class 2.0 Command Set The fax facilities as offered on the Omni 56K II and Omni 56K Plus II modems provide full compatibility with the class 1, class 2 and class 2.0 command sets. This compatibility means that your fax modem is fully configurable with a wider range of options that can be optimized if need be.
  • Page 15 Omni 56K II and Omni 56K Plus II User’s Guide Flash ROM Upgradeable ZyXEL has a policy of free distribution of new firmware when it becomes available. You can download the updated firmware from www.zyxel.com and install it in your modems.

  • Page 17: Chapter 2 Installation

    Hook Status DATA Data Traffic Modem Ready Installation Omni 56K II and Omni 56K Plus II User’s Guide STATUS The USB link is up. The USB link is down or the modem is in RS-232 mode. The modem is off hook.

  • Page 18: Figure 2-1 Omni 56K Plus Ii Rear Panel And Connections

    Omni 56K II and Omni 56K Plus II User’s Guide 2.1.2 Back Panel LABEL ON/OFF The power switch for the modem. AC IN This receptacle is the power input socket and is used to plug the power adapter into the modem.

  • Page 19: Connecting Your Omni 56K Ii (Rs-232 Port)

    Windows automatically starts an installation wizard when it detects new hardware. Use the wizard to select the driver on your included CD. Browse to D:\Drivers\Omni56KII (where D: is your CD-ROM drive), and click Next or OK. Installation Omni 56K II and Omni 56K Plus II User’s Guide...

  • Page 20: Figure 2-2 Windows 98 Add New Hardware Wizard

    Omni 56K II and Omni 56K Plus II User’s Guide Figure 2-2 Windows 98 Add New Hardware Wizard Installation...

  • Page 21: Figure 2-3 Windows Me Add New Hardware Wizard

    Omni 56K II and Omni 56K Plus II User’s Guide Figure 2-3 Windows Me Add New Hardware Wizard Figure 2-4 Windows 2000 Found New Hardware Wizard Installation...

  • Page 22: Figure 2-5 Windows Xp Hardware Update Wizard

    Omni 56K II and Omni 56K Plus II User’s Guide Figure 2-5 Windows XP Hardware Update Wizard Click Yes or Continue Anyway if a warning screen appears. Restart your computer if prompted. If Windows does not automatically detect your modem, make sure that the modem is connected and turned on.

  • Page 23: Connecting Your Omni 56K Plus Ii (Usb Port)

    CD. Browse to D:\Drivers\Omni56KPlusII (where D: is your CD-ROM drive) and the folder for your Windows OS; then click Next or OK. Figure 2-6 Windows 98 Add New Hardware Wizard Installation Omni 56K II and Omni 56K Plus II User’s Guide...

  • Page 24: Figure 2-7 Windows Me Add New Hardware Wizard

    Omni 56K II and Omni 56K Plus II User’s Guide Figure 2-7 Windows Me Add New Hardware Wizard Figure 2-8 Windows 2000 Upgrade Device Driver Wizard Installation...

  • Page 25: Figure 2-9 Windows Xp Hardware Update Wizard

    Omni 56K II and Omni 56K Plus II User’s Guide Figure 2-9 Windows XP Hardware Update Wizard Click Yes or Continue Anyway if a warning screen appears. Restart your computer if prompted. If Windows does not automatically detect your modem, make sure that the modem is connected and turned on.

  • Page 26: Tcp/Ip Setup

    TCP/IP Setup 2.4.1 Installing TCP/IP in Windows 95/98/Me Click Start, Settings, Control Panel and double-click the Network icon. Click Add in the Network window Configuration tab. Select Protocol and then click Add. Select Microsoft from the list of manufacturers. Select TCP/IP from the list of network protocols and then click OK. 2.4.2 Configuring TCP/IP in Windows 95/98/Me In the Network window Configuration tab, select your network adapter’s TCP/IP entry and click...

  • Page 27: Dial-Up Networking

    Insert the included CD. Choose the Bitware program from the Product list-box, and select your Windows system and language on the right side, then click Install. Follow the wizard to complete the installation process. Installation Omni 56K II and Omni 56K Plus II User’s Guide Figure 2-10 Bitware Master Setup 2-11...

  • Page 29: Chapter 3 Specifications & Functions

    This chapter introduces the specifications and functions of the Omni 56K II and Omni 56K Plus II This chapter and the next three chapters are designed for advanced users who might need more information about the Omni 56K II and Omni 56K Plus II modem's specifications and functions when programming or using other applications.

  • Page 30: Protocol Support

    Omni 56K II and Omni 56K Plus II User’s Guide LINK LAYER FLOW CONTROL COMMAND SET DIAGNOSTICS VOICE Protocol Support Data Physical Layer . ITU-T V.92 . ITU-T V.90 . ITU-T V.34bis/V.34 . ITU-T V.32bis/V.32 V.22bis 2.4 Kbps V.22/Bell 212A 1.2K bps V.21/Bell 103 300 bps...
  • Page 31 . EIA Class 2.0 Fax Command set . ZyXEL AT Command set . IS101 Voice Command set For more information on detailed command sets, please refer to Chapter 5. Specifications and Functions Omni 56K II and Omni 56K Plus II User’s Guide...

  • Page 32: Omni 56K Ii And Omni 56K Plus Ii Capability

    3.6.1 Physical Layer Capability The Omni 56K II and Omni 56K Plus II modems are high performance universal modems capable of transmission speeds up to 56/48Kbps full-duplex on a 2-wire dial-up line. Universal compatibility covers a broad range of ITU-T and BELL standards.

  • Page 33: Flow Control

    Flow control is necessary so that a device does not receive more data than it can handle. The Omni 56K II and Omni 56K Plus II provide two kinds of flow control methods. Hardware CTS/RTS Flow Control This is a bi-directional flow control where CTS (Clear to Send) and RTS (Ready to Send) are RS-232 signals that must be available on your computer.

  • Page 34: Software Xon/Xoff Flow Control

    Error control keeps the modem data link error-free by detecting and re-transmitting erroneous data. The Omni 56K II and Omni 56K Plus II modems support both MNP and V.42 error control protocols. The MNP protocol was an industry standard developed and licensed by Microcom, Inc. Omni 56K II and Omni 56K Plus II modems support level 4 and 3 error control protocols, commonly denoted as MNP4 and MNP3.

  • Page 35: Caller Number Delivery (Caller Id)

    The following is an example of a caller ID message as it might appear on your screen: RING TIME: 04-28 12:30 CALLER NUMBER: 7135551414 or CALLER NAME: Brent Harper Specifications and Functions Omni 56K II and Omni 56K Plus II User’s Guide...
  • Page 36 Omni 56K II and Omni 56K Plus II User’s Guide RING In the multiple message format, if the caller's number and name are available, the ring message will display both: RING TIME: MM-DD hh:mm CALLER NUMBER: <Caller_ID> CALLER NAME: <Caller_Name>...

  • Page 37: 3.15 Distinctive Ring

    The control relationships between bits 3-6 in register S40 and the different ring types are: Table 3-5 Different Ring Types in Register S40 TYPE Specifications and Functions Omni 56K II and Omni 56K Plus II User’s Guide BIT (ON) 1.2s or 2s on; 4s off 0.8s on, 0.4s off, 0.8s on; 4s off...

  • Page 38: 3.16 Security Function

    TYPE 3.16 Security Function The Omni 56K II and Omni 56K Plus II modems provide a security function, which (when enabled) prevents an unauthorized user from making a connection. Two types of security function are provided. Type 1 security is used when the remote modem is also a ZyXEL modem; type 2 security is used when the remote modem is any other brand of modem.

  • Page 39: Table 3-6 Modem Security Function

    If the remote site needs to enter the callback number, it will be prompted to do so. Specifications and Functions Omni 56K II and Omni 56K Plus II User’s Guide Table 3-6 Modem Security Function DESCRIPTION Disables security function.

  • Page 40: 3.17 Fax Function

    Omni 56K II and Omni 56K Plus II User’s Guide 3.17 Fax function 3.17.1 Fax Physical Layer Protocol STANDARD BIT RATE [BPS] V.17 14400-7200 V.29 9600-4800 V.27ter 4800-2400 V.21 3.17.2 EIA Class 1/Class 2 & Class 2.0 Command Sets Please refer to Section 5.2 Fax Command Sets.

  • Page 41: Bit Voice Data Compression

    1/3 or 1/4 of the original rate, but with voice quality degradation. 4-bit ADPCM is used in the Omni 56K II and Omni 56K Plus II modems. Specifications and Functions...

  • Page 43: Chapter 4 Result Codes

    This chapter details the command responses for the Omni 56K II and Omni 56K Plus II modems. Result Codes The result code is the command response or the Connect message to the DTE. The format of the result code is dependent on the Xn and Vn commands. The lists are as follows:...
  • Page 44 RESULT CODE FOR ATV0 ATV1 CONNECT 12000 CONNECT 14400 CONNECT 16800 CONNECT 38400 CONNECT 57600 CONNECT 76800 CONNECT 115200 CONNECT 230400 CONNECT 460800 CONNECT 921600 CONNECT 307200 CONNECT 153600 CONNECT 102400 CONNECT 61440 CONNECT 51200 CONNECT624000 CONNECT124800 CONNECT 62400 CONNECT 41600 CONNECT 31200 CONNECT 24960 CONNECT 20800...
  • Page 45 CONNECT 38666 CONNECT 37333 CONNECT 36000 CONNECT 34666 CONNECT 33333 CONNECT 32000 CONNECT 30666 CONNECT 29333 CONNECT 28000 Result Codes Omni 56K II and Omni 56K Plus II User’s Guide ● ● ● ● ╬ ● ● ● ● ╬...
  • Page 46 Note: If error control result codes are enabled (X4, X5, X6, X7), the resulting message will be formatted as: CARRIER Rx Rate. PROTOCOL: Error Control Level COMPRESSION: Compression Level CONNECT DTE Speed CONNECT DTE Speed/Protocol Rx Rate/Error control level CONNECT Rx Rate/ARQ CONNECT Rx Rate/ARQ/Error control level ARQ denotes that the Automatic Retransmission reQuest type of error control is enabled.

  • Page 47: Chapter 5 Command Sets

    This chapter lists the command sets that the Omni 56K II and Omni 56K Plus II modems support. These commands include data command sets, fax command sets and voice command sets. Data command sets 5.1.1 Basic AT Command Sets COMMAND OPTIONS Re-execute the last command once.
  • Page 48 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND OPTIONS 0-9, A, B,C,D #, * n=0-3 E1 * H0 * FUNCTION & DESCRIPTION Dials (numbers and options) that follow (see also S38.0, S35.4). The options of s are listed as...
  • Page 49 Sets the display type for result codes. Displays the result code in numeric form. (See also S35.7 and the result code table of 'ATXn') Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION & DESCRIPTION REF. S24.4-6 S21.1-2...

  • Page 50: Table 5-3 Extended At& Command Sets

    Omni 56K II and Omni 56K Plus II User’s Guide COMMAND OPTIONS V1 * n=0-7 n=0-2 5.1.2 Extended AT& Command Sets COMMAND OPTIONS &Bn &B0 &B1 * &Cn &C0 &C1 * &Dn &D0 &D1 &D2 * &D3 &F FUNCTION & DESCRIPTION Displays the result code in verbose form.
  • Page 51 &N5 V.32 4800 &N12 V.23 1200/75 &N13 V.23 600/75 &N14 V.22bis 2400/1200 &N15 V.22 1200 &N16 V.21 300 &N17 V.32bis 14400/12000/9600/7200/4800 Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION & DESCRIPTION REF. S28.4-5 S27.3-5 S27.0-2...
  • Page 52 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND OPTIONS &N18 &N19 &N24 &N25 &N60 &N61 &N62 &N63 &N64 &N65 &N66 &N67 &N68 &N69 &N70 &N71 &N72 &N73 &N99 &N98 &N97 &N96 &N95 &N94 &N93 &N92 &N91 FUNCTION & DESCRIPTION V.32bis 12000/9600/7200/4800...
  • Page 53 &T0 Terminate the test in progress. &T1 Initiate an Analog Loop-back (ALB) test. &T3 Initiate a Local Digital Loop-back (LDL) test. Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION & DESCRIPTION REF. S23.2 S21.5 S21.3...
  • Page 54 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND OPTIONS &T4 &T5 &T6 &T7 &T8 &Vn &V0 &V1 &V2 &W &Yn &Y0 &Y1 * &Y2 &Z? &Zn=s n=0-3 FUNCTION & DESCRIPTION Grant a Remote Digital Loop-back request from a remote modem.

  • Page 55: Table 5-4 Extended At* Command Sets

    Enables type 2 security, with password check and call back; remote site enters the callback number. Resets the supervisor password to "ZyXEL". Command Sets Omni 56K II and Omni 56K Plus II User’s Guide Table 5-4 Extended AT* Command Sets FUNCTION & DESCRIPTION REF.

  • Page 56: Table 5-5 Extended At# Command Sets

    Omni 56K II and Omni 56K Plus II User’s Guide COMMAND OPTIONS Note: The command *Gn requests supervisor password checking. 1. In security type 1, the remote site must be a ZyXEL modem. 2. In security type 2, the remote site can be any other type of modem.

  • Page 57: Fax Command Sets

    V.17 V.17 short train V.29 V.17 V.17 short train V.17 Command Sets Omni 56K II and Omni 56K Plus II User’s Guide Table 5-6 Service Class 1 Commands DESCRIPTION MODULATION VALUE n=0:Sets to modem mode n=1:Sets to Class 1 mode n=2.0:Sets to Class 2.0 mode...
  • Page 58 Omni 56K II and Omni 56K Plus II User’s Guide V.17 short train V.17 V.17 short train 5-12 12000 14400 14400 Command Sets...

  • Page 59: Table 5-8 Service Class 2 Command Syntax

    +FCQ=n Sets the copy quality check capability parameters. Disables the copy quality check capability. Command Sets Omni 56K II and Omni 56K Plus II User’s Guide DESCRIPTION Execute a command or set a parameter. Read permissible settings. Read current setting.
  • Page 60 COMMAND Only check 1D phase C data. Check both 1D and 2D phase C data. +FCR=n "Capability to receive" parameter. DCE will not receive message data or poll a remote device. DCE receives message data or polls a remote device. +FDCC=vr,br,wd, Sets the DCE capabilities parameters.
  • Page 61 Set the CTS/RTS hardware flow control. +FLPL=n This command indicates the availability of documents for polling. The DTE has no document available for polling. Command Sets Omni 56K II and Omni 56K Plus II User’s Guide DESCRIPTION VALUE st=2 st=3...
  • Page 62 COMMAND Indicates that a document is available for polling. +FMDL? Request the DCE model. +FMFR? Request the DCE manufacturer. +FMINSP=n Minimum phase C speed parameter. 2400 bps. 4800 bps. 7200 bps. 9600 bps. 12000 bps. 14400 bps. +FPHCTO= DTE Phase C response time-out: <value>...

  • Page 63: Table 5-10 Class 2 Command Responses

    +FNSC:"HEX string" +FNSF:"HEX string" +FNSS:"HEX string" +FPOLL +FPTS:n Command Sets Omni 56K II and Omni 56K Plus II User’s Guide Table 5-10 Class 2 Command Responses FUNCTION AND DESCRIPTION Confirmation. Reports the remote ID response CIG. Facsimile connection response.

  • Page 64: Table 5-11 Service Class 2.0 Commands

    Service Class Identification and Control Identify DCE Manufacturer Identify DCE Identify DCE Revision Establish DCE Capabilities Vertical Resolution VALUE n=0,1,2.0,8;refer to the +FCLASS Class 1 command ZyXEL Omni 56K II/Omni 56K Plus II Vx.x vr=0:Normal;98 lpi vr=1:Fine;196 lpi Command Sets...
  • Page 65 COMMAND +FIS=vr,br,wd,ln,df,ec,bf,st +FCS=vr,br,wd,ln,df,ec,bf,st +FLI="string" +FPI="string" +FLP=n +FSP=n Command Sets Omni 56K II and Omni 56K Plus II User’s Guide DESCRIPTION Bit Rate Page Width Page Length Data Compression Format Error Correction Binary File Transfer Minimum Scan Time/Line The current session’s negotiating parameters The current session’s parameters...
  • Page 66 COMMAND +FNR=rpr,tpr,idr,nsr +FIE=n +FPS=n +FLO=n +FPR=n +FBO=n +FEA=n 5-20 DESCRIPTION Enable Negotiation Reporting Procedure Interrupt parameter Page Transfer Status Flow Control Select Serial Port Rate Control Phase C Data Bit Order Phase C Received EOL alignment VALUE rpr= 0:Receiver parameters are not reported.
  • Page 67 +FCR=n +FCQ=<rq>,<tq> +FRQ=pql,cbl +FAA=n +FCT=n +FMS=n +FBS? Command Sets Omni 56K II and Omni 56K Plus II User’s Guide DESCRIPTION Capability to Receive Copy Quality disable/enable Receive Quality Thresholds Adaptive Answer Mode Phase C Timeout Minimum Phase C Speed Buffer Size...

  • Page 68: Voice At Commands

    Omni 56K II and Omni 56K Plus II User’s Guide Voice AT Commands COMMAND FUNCTION +FLO Select Flow control. +VIP Initialize parameters. +FCLASS Voice/data/fax selection +FMI? Manufacturer ID. +FMM? Model ID +FMR? Revision +VRX Voice recording +VGR Set the gain for the received voice sample.
  • Page 69 DTMF Tone Generation +VTS= x,x... DTMF Tone Generation Command Sets Omni 56K II and Omni 56K Plus II User’s Guide OPTION DEFAULT 2: The DCE is off-hook and is connected to the telephone line. Power is also provided to the local phone.

  • Page 70: Voice Shielded Dte Commands

    Omni 56K II and Omni 56K Plus II User’s Guide COMMAND FUNCTION +VTD Set default duration of DTMF tone. +VIT Inactivity timer. Voice Shielded DTE Commands Table 5-13 Voice Shielded DTE Commands COMMAND <DLE>p Pause, suspend voice data to the output device in playback state.

  • Page 71: S-Register Descriptions

    Sets duration, in tenths of a second, that the modem waits after the carrier is lost before hanging up. Command Sets Omni 56K II and Omni 56K Plus II User’s Guide DESCRIPTION Table 5-15 Basic S-Registers "ATSn=x" FUNCTION & DESCRIPTION REF.

  • Page 72: Table 5-16 Extended S-Registers "Atsn=X

    Omni 56K II and Omni 56K Plus II User’s Guide COMMAND S11= Sets duration and spacing, in milliseconds, of dialed Touch-Tones. 5.6.2 Extended S-Registers "ATSn=x" Table 5-16 Extended S-Registers "ATSn=x" COMMAND S13= S14= S15= S16= 5-26 FUNCTION & DESCRIPTION FUNCTION AND DESCRIPTION Bit-mapped register.
  • Page 73 1-46 S19= 0-99 S20= Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION AND DESCRIPTION Analog Loop-back test in progress Local Digital Loop-back test in process Remote Digital Loop-back test in process Remote Digital Loop-back with self-test in process Analog Loop-back with self-test in progress.
  • Page 74 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND Note: Only speeds up to S20=15 are supported by auto-speed detection. S21= 5-28 FUNCTION AND DESCRIPTION 4800 bps 2400 bps 1200 bps 460800 bps 300 bps 307200 bps 153600 bps...
  • Page 75 COMMAND S23= Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION AND DESCRIPTION The speaker is ON after the last digit is dialed out the until carrier is detected. DSR is always ON (default). According to CCITT (see also S44.4, S41.5).
  • Page 76 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND S24= S25= 0 to S26= 0 to S27= 5-30 FUNCTION AND DESCRIPTION ATX4 ATX5, error control result code is enabled (default). ATX6, error control result code is enabled. ATX7, error control result code is enabled.
  • Page 77 S31= 0-255 S32= 0-255 S35= Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION AND DESCRIPTION Reserved Signal quality. No response to poor signal quality. Retrain action taken if signal quality is poor. Adaptive rate (auto fall-back/forward) when signal quality changes (default).
  • Page 78 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND S38= S40= S41= 5-32 FUNCTION AND DESCRIPTION Enable extended numerical result codes from 50 to 65 when an error corrected connection is made. Use with ATV0 (see result code table).
  • Page 79 S44= S45= 0-255 S46= Command Sets Omni 56K II and Omni 56K Plus II User’s Guide FUNCTION AND DESCRIPTION Ignore calling tone, not to be used as fax detection. Bit-mapped register. Enables throughput averaging. A CND message forces on even if ATQ2 is set.
  • Page 80 Omni 56K II and Omni 56K Plus II User’s Guide COMMAND 0 to S48= S52= S56= 0 to S57= S-register bit number, 'b', used in 'ATSr.b=n' and 'ATSr.b=?' Decimal value, 'x', used in 'ATSn=x' Equivalent Hexadecimal value. +nnn Factory default when listed in 'Reference' column.
  • Page 81 Omni 56K II and Omni 56K Plus II User’s Guide Command Sets 5-35...

  • Page 83: Chapter 6 Firmware Upgrade

    This section describes how you can upgrade the firmware in your modem. The ZyXEL Omni 56K II and Omni 56K Plus II provides a firmware upgrade function that allows you to upgrade the firmware either by upgrade software provided in the supplied CD, or by terminal program such as Bitware or HyperTerminal.
  • Page 84 Are you sure (Y/N)? Step 3. Be sure you have a new version of firmware file on hand, then click 'Y.' The terminal will respond: Erase the flash ROM now. Please wait. Then, it will continue to show: Ready to program to flash. Please start upload. Step 4.

  • Page 85: Chapter 7 Troubleshooting

    I cannot access the modem via my computer. I cannot connect to the Internet. Troubleshooting Omni 56K II and Omni 56K Plus II User’s Guide Troubleshooting This chapter covers potential problems and the possible solutions. Table 7-1 Troubleshooting CORRECTIVE ACTION...
  • Page 86 PROBLEM I cannot get the software driver to uninstall and reinstall properly. CORRECTIVE ACTION Close your Windows applications. Use the add and remove hardware option in the Windows Control Panel to remove the modem. Insert the included CD. If a screen automatically opens, close it. Unplug the RS-232 cable (Omni 56K Plus only) and plug it back in.
  • Page 87 Distinctive Ring... 3-4, 3-9 Error Control ... 3-3, 3-4, 3-6, 4-3 error correction ... 1-2 Index Omni 56K II and Omni 56K Plus II User’s Guide Extended S-Registers ...5-26 Fax command sets ...5-11 Firmware Specification ...3-1 Flash ROM ... 1-3, 6-1 Flow Control ...
  • Page 88 Security ... 3-10, 3-11 Service Class 1 Commands ...5-11 Service Class 2.0 Commands ...5-18 Specifications ...3-1 S-Register Descriptions...5-25 TCP/IP Setup ...2-10 Troubleshooting ...7-1 Upgrading...6-1 USB plug and play compatible ... 1-1 V.92 56K ... 1-1 Voice AT Commands ... 5-22 Voice Function ...

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