+MS=V34,1,300,33600 S38=0 (PCMCIA Lucent Venus)
+MS=V34,1,300,33600 (X2/ISA Cirrus)
S38=0S109=0 (Disables v90- Lucent) A modem that allows the customer to identify who is calling using a Caller ID feature built into the modem and then either end their Internet session to answer the call or to ignore the call in order to stay online. The customer must have both call waiting and Caller ID on the phone line enabled by the telco. Customer support information can be found here. See Cirrus Logic Cirrus Logic changed its name for Ambient Technologies. Chipset commands are still the same. An AMR modem manufactured by Motorola, but gets tech support through Gateway or a similar OEM PC manufacturer. It actually shares many components with the Motorola SM56 and PC Tel HSP modems. Because it's based on software modem technology and lack on board DSP/Controller it shares many of the same connections issues as both of those aforementioned modems. Modem Master 56k: AT&F&C1Q0V1
AcerModem 56 data-fax-voice modem (Any 56k/v90 Modem): String:
&N10
&N11
&N12
&N13
&N14
&N15
&N16
&N17
&N18
&N19
&N20
&N21
&N22
&N23
&N24
&N25
Port Speed Set:
19200
21600
24000
26400
28800
31200
33600
33333
37333
41333
42666
44000
45333
46666
44000
48000Smart Link AMR:
+MS=34,0,4800,33600 (Disable V.90)The AMR modem is sometimes referred to as a Smart Link or HMR56 modem riser (or daughter board). It is made by several modem manufactuers such as Motorola and Smart Link; or as an "integrated" mothboard component. It is a software modem that uses the proprietary AMR slot (a small PCI style slot) that has a built in DSP unit to process audio/modem functions. Generic drivers can be found here. The AMR standard shares many of the same limitations as HSP modems (for the same engineering reasons), as well as, many of the same components. As a result connection issues may result from using this software based solution. PCI-
F56-S: N0S37=12 (PCTel Chipset)
FM56-SM: +MS=V34 (Conexant Chip)
FM56-PM: +MS=V34 (Conexant Chip)
ISA-
FM56-ITU/2: N0S37=12 (Hardware Chipset using PCTel Commands)
External-
FM56-EX/2: +MS=V34 (Conexant Chip)
(As quoted by AOpen offical site:) FM56-USB, FM56-S and FM56-SM are software modem (Winmodem). Modem data pump and controller functions are porcessed in a Pentium MMX-Compatible CPU using host-signal processing modem software. It's very important for users to follow up the minimum specs requirements. On Line Gaming will occupy most CPU loading and AOpen will not guarantee playing quality. Driver can be found here. See Other Rockwell notes AT&F1W1 (Older models)
AT&F1W2 - Global Village Init
FreePPP Homepage Global Village technical support documents. Boca recently bought Global Village out and has put them under the control of their subsidiary of Zoom. To update modem drivers use: Mac Modem Update Wizard
Note: To set a iMac or G3/4 to v.34 simply select the "iMac (v34 only)" modem definition in the modem control panel.Getting 56k connections with a Mac.
Troubleshooting TCP/IP.
Macintosh Help: iMac modem troubleshooting, iMac Internet Troubleshooting, No dial tone, iMac Init Strings, The Mac Troubleshooting Handbook, How to Permform a "clean installation", The Apple Online Machine Specs Data Base, and Apple Support. For some OS Help: Quillserv's Mac Survial Tips, Mac Resources, MacInTouch, and Mac Links. To search for troubleshooting info use: Tech Info Library or Tech Info Library Archives (articles over 8 years old). See LT Winmodem +MS=(11,12,56),1,300,40000 PCI V90:
+MS=V34 (V90 disable- Rockwell)
-V90=0 (V90 disable- Lucent)
UM9800 V90 USB:
+MS=(34,90),1,75,40000 or
+MS=34,1,33600,33600
Rockwell and Lucent chipset modems. The Rockwell is more common. Aztech makes the MDP/MSP/Mxx series of modems. For more information on MDP and known issues click here. +MS=11,1 +MS=11,1 S51=31 (Disable X2/V90)
S51=95 (Disable X2)
S51=63 (Disable V90)Uses the Broadcom Chipset. Gateway ships this modem with driver V3.2.09, but V3.2.09.04 can be downloaded here. +MS=V34,1,0,33600 (x2/v90 off)
+MS=X2,0 (disable v90 only)Modem Response: ati3=cl-md5620dt-qc-bc
For generic drivers check here.see x2/v90 US Robotics -HSP/Micromodem (see HSP)
-Rockwell/Conexant HCF (see HCF)
-LT Winmodem (see Lucent)
-Compaq DF (Lucent chipset): Driver version 5.75 update may solve issues. Suggested strings are: S38=0 or S37=0Compaq modem drivers.
Compaq system drivers.
Compaq Reference Library.Compaq purchases a number of outside vendors modem products for their PCs. Their primary vendors for their less exspensive PCs is PC Tel (see HSP) that have several documented connection issues. Driver updates (called Softpaqs) are a must for these modems. Compaq has a great article about why connections speed vary and line noise here. Of course at the bottom of this page you can find our version that is very similar. Also they present an explanation on how V.90 works here. +MS=V34 (disables V90)
+MS=V90 (forces V90)
+MS=(k56 or V90),1,75,33600,75,40000
(forces V90 or K56)+ES=1,0,1; (disable v42)
Rockwell renamed itself Conexant, but the chipset commands are still the same as before. Their modems come under several names, but all use the same strings. Some names are Soft56K and HCF. For a list of Conexant chip modems by vendor check here. +MS=V34 (disable v90- Conexant) Creative Labs Tech Support Wizard AT&F+MS=11,0 (disable v90 Supra)
S38=0 (disable v90 SupraExpress USB)
AT&FS9=20S10=60 (Not sure what is does, but it makes the SupraExpress USB connect with line noise).
-V90=11 (Diamond Voice PCI)AT&F (reset modem)
Driver v2.03 works, v2.04 has been known to have connection issues.
Diamond Tech Wizard (strings etc...)+MS=11 (Disable V.90) +MS=11,0
Uses Rockwell, Cirrus, or Teledrive chip set. Very poor connection abilities. No drivers on ESS web site or technical support numbers.
Gateway Solo 3350 or HP Pavilion N5000 and Omnibook XE3 notebooks were unable to use their V.90 56kbps modems to get online because of a problem in the modem driver from ESS Technology. Users of these laptops should contact their vendors for help updating to the correct driver version.-56K PCI Modem Designed for the Internet uses Lucent Chipset.
-AC Link uses HSP Chipset (more info).
-56k PCI Voice Modem SF-1156IV + R9A: +MS=V90,1,75,33600,75,40000 (Forces V.90)Gateway Modem Drivers.
Gateway Tech Library.
Gateway modem info.
Gateway modem trouble.Note: Older modems are v.34 only.
+MS=11,1,2400,33600 (Disables K-Flex for the legacy 56kflex/v34 modems)
+MS=12,1,300,40000 (Disables V.90)Has gone bankrupt. Bought out by Zoom Telephonics. Legacy drivers can be found here, as well as, here. A FAQ can be found here. Since some older Hayes modems support 56K-Flex/V.34 they will only connect at 33.6Kbps or slower when dialing into a V.90/V.34/X2 ISP.
Also called: Modem Master 6000, HSP 56 Audio Modem Rise, HSP Micro Modem, and ESS ES56T-PI.N0S37=14 (forces V90)
N0S37=12 (disables V90)
Alternate String:
+MS=(V=34,V90),1,300,40000
HSP AMR:
+MS=V90,1,300,40000 (Forces V.90)
+MS=V34 (Disables V.90)
Frequent disconnect problems. Uses CPU to provide modem function processing and therefore if the CPU doesn't have enough free resources that modem will not work. Read this. Normal modems have a controller and data pump. Winmodems do not have a controller. HSPs have neither! Therefore HSPs will use up to 3x's the amount of CPU resources than other Winmodems, which explains their disconnection issues. HSP stands for host signal processing. This means that all modem hardware modem processes are done by emulation through software. As a result the modem uses more CPU resources and requires more time to correct errors than a hardware modem. Slowing the amount of data down allows the emulation more time to process data and less errors to correct. (K-Flex) AT+MS=56,1,300,42000 -V90=0 (Disables V.90)
S38=0 (Disables K-Flex)
S37=0 (Sets up stream rate to default)
/N2 (Disable V.42)\N2 (Disables v.42)
AT&F (reset)Help sites: 56k.com, 8080hi.com, & Vendor List.
To install the latest modem drivers, have the customer download this file: Modem600.exe. Then double click on file, select extract (it might extract automaticaly), then OK. The driver will automaticaly remove the old modem profile, update the Windows driver database with new Lucent driver, and then search for new modems. This works with most LT modems.
Note: Modem may be renamed to Lucent Modem from LT Winmodem. Make sure to update DUN settings for dialer.
To see if a modem is Lucent based look for ltmodem.vxd in the /windows/system directory (Note: This will NOT show up in a file search, you must open of the directory and set Explorer to show all files in order to locate it.).
Click here for a list of Lucent modems by model/name. Click here for a list of modem by manufacturers.S38=0 (Disable K-Flex)
S109=0 (Disables V.90)
S109=2 (Disables X2)
/N2 (Disable V.42)Click here for a list of Lucent modems by model/name. Click here for a list of modem by manufacturers. +MS=56,1,300,40000 See PcTel for more info. AT&F1&K0&I0S33=325S15=128S27=64 *MM0 (Disables V90)
HSP based modem. Frequent disconnect problems. Read this article from Motorola for more information. There is also a variant of the SM56 called SM56 AC-L. This is a AMR modem that uses the AC Link chip set. It too shares many of the same connection issues as the SM56. First: +MS=V90 or +MS=V90, 0
(disables K-Flex and sets to v.90)
If not then: +MS=V34 (sets v.34)
MDP 3858 SP Modem (Packard-Bell):
+ms=V90,1,75,33600,75,400003900 - Athen_98.exe (win98) 1/13/00 Version: 2.1.2.162.009.004
3858 - DD1196D.exe (win9x) 3/14/99 Version: 2.1.2.156
Dell is aware of problems with this modem. All modems under warranty are to be exchanged for USR modems of equal value. The site for driver updates is here. Latest drivers are listed to the left of this box with their respective versions, release date, and operating system. The chipset is Rockwell HCF and will respond to that command set. The actual board is made by Aztech. -V90=0 (turns off v.90) A variant of MDP that uses Lucent Mars instead of Conexant chipset commands. The actual board is made by Aztech. +MS=V34 This modem is made by Aztech. It shares the same poor connection issues as other Mxx type modems listed above. -SSE1
%C (Disable V.42bis/MNP 5)
\N3 (Disable V.42)
\N5 (Disable MNP)
Control Connection Speed:
S28=18 for 26.4Kbps
S28=17 for 24.0Kbps
S28=16 for 21.6Kbps
S28=15 for 19.2KbpsIBM MWave FAQ.
MWave problems.
Notes to Help with MWave.
MWave Drivers.
IBM at last press release was embroiled in a lawsuit over this modem. Customers have frequent complaints about connection failures, hardware issues, and other problems. A lot of modem issues can be solved by downloading the APMWDIAG.EXE from IBM. This corrects most driver issues. The init string AT&F&D3\N5\Q3&K3 is said to work well. -V90=0
As the parent company of now bankrupt Packard Bell, NEC is handling all warrantied technical support for the Packard Bell. +MS=(11,12,56),1,300,40000 56K Internal: S32=34 (disable X2)
-Use USR commandsOut of business. No drivers or support other then provided on Windrivers.com. The 56K internal/external modems are US Robotics chip set modems with Rockwell produced chips. All AT commands are based on the USR chip sets. Lots of reports of poor connections etc... AT&F1&C1X4 Packard Bell is now in bankruptcy. All technical support for clients still under warranty should be done through the parent company NEC. All other legacy products are without support except that listed on the Packard Bell web site. Most generic PCI based software modems are Rockwell chipset, but some use the Lucent chipset. There is no such thing as an ISA software modem. Software modems do not have controllers and rely on a Windows MMX compatible CPU to handle modem functions such as ECC etc... N0S37=14 (forces V90)
N0S37=12 (disables V90)See HSP modem issues. Here is another informative article from Zoltix that also talks about HSPs including init strings. Generic drivers can be found here.
(V.90 56K)+MS=11,1,2400,33600
(Uses Hayes commands)Drivers can be found here. Lots of know issues such as connectivity, error control, and other issues that result in poor (if any) connections. Software based modem made by Rockwell, but with OEM support from the PC vendor. +MS=V34 (disables V90)
+MS=V90 (forces V90)S95=1 is supposed fix fix issues with connecting, slow connections, slow transfer rates, and hang ups. Rockwell renamed itself Conexant, but the chipset commands are still the same as before. Their modems come under several names, but all use the same strings. Some names are Soft56K and HCF. For a list of Rockwell chip modems by vendor check here. AT+MS=56 (Disables V.90)
AT+MS=12 (Disables Kflex)
AT+MS=11 (Disables V.90 and Kflex)+MS=V34 (disable v90) or
+MS=11,1 (disable v90)
Rockwell RCV288 and ACF modem: at+a8e=,,,1+ES=1,0,1; (disable v42)
Q6 (disable v.42)
S95=1 (report port speed)
Rockwell renamed itself Conexant, but the chipset commands are still the same as before. Their modems come under several names, but all use the same strings. Some names are Soft56K and HCF. For a list of Rockwell chip modems by vendor check here. Use Diamond Tech Support Wizard.
Supra Express: AT&FW2+MS=11,1 (disable V.90)Modem chipset varies. Manufactured by Diamond. ESS Modem Chipset. See ESS. S32=34 (v.90 on, X2 off; using V.34)
Use US Robotics strings (see below).Uses US Robotics chipset. +MS=56,1,300,40000 S32=66 (v.90 off X2 on )
S32=34 (v.90 on, X2 off; using V.34)
S32=98 (v.90 off, X2 off; using V.42)
S15=128 (Disables V.42bis compression.)
S10=100S25=200 (Increases line noise time out to 100 ms.)
s10=120 ( Makes modem wait 120 ms before hanging up. Good for disconnection issues.)
&k1 ( Forces Data Compression )
&k0 ( Disables Data Compression )
&m5 ( Forces Error Correction )USR Modem Update Wizard
Generic US Robotics non-Winmodem driver is here.US Robotics/3Com has been sold to Accton Technology and NatSteel Electronics. It appears that these companies will eventually take over support for these products.
Some USR X2 modems can connect, but can't transfer data. Customers with this problem should put in S15=128 and update their drivers.S58=1 (Disable X2)
S27=32(Disable V.42)
S58=32 (Disable V.90)
S58=33 (Disable V.90 & X2)S38=0 PC Card (PCMCIA)-
+MS:11,1,300,33600,0,0 (Disable v.90)
+MS=V34 (Disable v.90)+MS=11,1
Modem Response ati3=V2.081-07 see US Robotics
Some generic X2 modems can connect, but can't transfer data. Customers with this problem should put in S15=128 and update their drivers. S38=0 (disables K-Flex) Most generic Winmodems use the Lucent Chipset. However, Conexant chipset Winmodems are starting to increase. Laptop PCMCIA card modems. S109=0
More Info: 8080hi.com and the Zoom Tech Support Wizard. AT$$CW3
Solution Bad modem drivers or phone line. Update drivers and possilby have phone line checked by telco. Modem issue. S6=10 Line noise or driver issue. 1. User must update modem driver.
2. Perform Histcall to check for line noise.
3. S10=100S25=200, lower port speed, and remove compression.
4. Remove all outside telephony devices and any splits in the line.
5. For more info check here.Bad user id/password Remove script and re-enter u#/password. V.90 incompatability/driver out of sync. 1. Disable v.90 with init string, remove compression, and lower port=38.4kbps.
2. Customer must update driver.What each reading means:
RxSpeed: The recieve speed in bps.
TxSpeed: The transmit speed in bps.
Modultn: The protocol used (v90, X2,...)
Retrn: # of retrains
ReNego: # of renegotiations.
ErrProto: Protocol errors.
FarEndEchoLvl: Less than RxLineLvl
RxLineLvl: -18dBm to -13dBm
SNR: -31dBm to -34dBm
TxErrs: Transmit errors.
RxErrs: Recieve errors.Most customers should connect with v.90 or X2 and should be reflected in the modulation area. Older modems will however connect at v.34 if they are not 56k v.90 compatible. Slow connections are caused by line noise or bad drivers. The TxSpeed will reflect the connection speed while the RxSpeed will always be lower (that is normal). If a protocol is at fault it will show up in ErrProto. Retrains and renegotiations are caused by line noise or drive incompatibilities. The RxLineLvl should always be between -18dBm to -13dBm. Any line under -21dBm is far too weak to carry a v.90 signal. The far end echo should always be less than the RxLineLvl. The Signal to Noise Ratio (SNR) should always be between -31dBm and -34dBm. Anything higher the -29dBm is far too noisy to carry a v.90 signal. A signifigantly high number of transmit or recieve errors could denote a driver problem (specifically either v.42bis, which is compression) or error control problems (ECC). Driver updates, a dedicated line (no splitters or telephony devices), and a clear line are a must. A short, disruption, or tone shift in the wiring or phone equipment. Make sure the modem line is dedicated (no splitters, splices, long runs using inexspensive phone extension cords, phone line surge surpressors, or couplers) with no telephony devices (answering machines, fax machines, or portable phone; as well as; older phones) running to the walljack. The walljack should be wired directly to the Dmark outside the house with no splices if possible. Other causes are rusty terminals in the Dmark, wire detetioration, large appliances near exsposed lines, shorts (or grounds), AML (or similar shared phone services), problems in the loop, a bad pole card, older equipment on the pole, engineering issues (end of run etc...), a bad phone jack, or weather/nature. They aren't "bad", but there are some inherent architectural flaws in the modem design itself. Software modems are either missing chips (parts) that control data flow (controller), actually process data (data pump), or as with the HSP they have neither. Instead of using chips to process this data those functions are done with software running in the background. The first problem is that the program running in the background uses up system resources (see the next row for more information). Secondly, because of software emulation any line noise/errors that due occur could potentially back up and cause you to get disconnected. Emulation is much slower than real chips/hardware so it is slower to correct errors and therefore more prone to disconnects. A hardware modem will always outperform a software modem. For a more in depth look at software modems read this. An outside application running on your computer in the background that is using up system resources leaving your PC with limited ability to correct errors and move data efficiently. Disable any screensavers, instant messaging programs, icons in your system tray, or any other program that isn't needed. In general, when you hit CTRL+ALT+DEL on your keyboard you should only have Systray, Explorer, and Rund32.dll running in Windows 95/98 at start up. Check with your computer manufacturer's tech support for more information on disabling background programs on start up and how to optimally configure system resources. Also make sure your video drivers are up to date. To find out if you have the latest drivers contact your video card/PC vendor or search their web site. Also try disabling all power saving features in both your PC BIOS and in the Windows Control Panel "Power Management" feature. Please contact your PC vendor for more information on how to do this. By Federal Communications Commission Law a local telephone service provider in the USA only need provide a signal capable of fax transmission (9600bps) for local service. In addition, there may be engineering issues in your area that require the telephone provider to share lines among many users through a technology called multiplexing. Sometimes it is referred to as AMLII or pair gain. Multiplexed lines will be limited to a connection speed of 26,400bps. Another common issue is if your phone call is routed through more than two switches. A line signal will not be strong enough when passed through more than one switch. Finally, users at the end of a telephone run may have less signal since they are at the maximum engineering limits for line signal quality.
Long distance phone calls are exempt from this issue. A long distance call is purposely fed more signal so that it can cross continents without voice loss. As a result long distance ISPs usually enable you to connect when a local ISP won't. This is due to the difference in line quality between a local and long distance call.Windows Registry Corruption First restore the previous Internet configuration, the delete the registry key: "HKEY_CURENT_USER/Identities", Then reinstall the WOL IE5 CD. The Advisor was set to the highest protection level and the customer forgot/doesn't know the password. Delete Registry Key:
HKEY_LOCAL_MACHINE/Software/Microsoft /Windows/CurrentVersion/Policies/RatingsMicrosoft explains how here. For more information check out: Hayes modem AT commands, basic modem commands, common AT commands, and How To Use AT Commands. It has been our experience that the following hardware works best: Dial-up Modem:
(Internal) US Robotics 56K Performance Pro Modem, (External) US Robotics 56K External Faxmodem, (Mac) US Robotics 56K External Faxmodem for Mac, and (Laptop) US Robotics/3Com XJack and PC Cards.
Broadband/DSL:
Ethernet Cards - (Internal) 3Com HomeConnect Home Network Ethernet 10/100 PCI Adapter, and (External/USB) 3Com HomeConnect Home Network Ethernet USB 10 Mbps Adapter.
DSL Routers w/Firewalls & NAT - EtherFast 4-Port Cable/DSL Router.
Software Firewalls - Zone Alarm.Program glitches/bugs, operating system issues, and conflitcting programs can cause these issues. Check out: Sandi's MVP Internet Explorer/Outlook Express Site (great for common conflicts and error resolution). Curt's High Speed Modem Page (explains what a UART is and gives information on modems). Highlights: Check out what to buy/not to buy, software modems (RPI, windmodems, HSP/soft modems), and the modem links area. Please read MVP Eshelman's site for help with Microsoft products.
MVP Hardmeier also offers excellent support for Internet Explorer products.There are several excellent tutorial sites to familiarize new users with Windows 9x/ME.:
Windows 98 New User Tutorial
Learn How to Use the Web
Beginners Computing: Windows New LifeThere are several good lists on the web. Modems vendors list, 56k.com, Modem Help.org Modem Support Sites, and Windrivers. Check out: More Initialization Strings. Also look at Modem Help.Net or Freeserve Modem Help. We personally recommend 56k.com and ModemHelp.org for modem initialization strings and more information about the vendors. Go to Windriver.com Modem Drivers We are NOT responsible for driver installation. See your modem vendor! www.v90.com V.90=Unreliable ModemHelp.org Modem/DSL Speed Test Page Throughput Information Echohelp Why Don't I get 56k Cyberave Setup Info Microsoft Support Knowledge Database MacAddict Maximum Linux Maximum PDA McAfee Virus Research Center Windows Update CERT Security Coordination Center Netscape Tech Support Contact Info Windrivers.com Winfiles.com Shareware Netscape Communicator 4.76 (Win)
Netscape Communicator 4.76 (Mac)Microsoft Internet Explorer 5.5 SP1 (Win)
Microsoft Internet Explorer 5 (Mac)