| Manufacturer |
Initialization
String(s) |
Additonal
Information/Related Links |
| ABC |
+MS=V34,1,300,33600 |
|
| ActionTec
|
S38=0
(PCMCIA Lucent Venus)
+MS=V34,1,300,33600 (PCI/ISA Cirrus)
|
|
| ActionTec
Call
Waiting Modem |
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. |
| Agere |
See
Lucent. |
Lucent
has renamed itself Agere. |
| Ambient
(Now owned by Intel) |
See
Cirrus Logic for more information. |
Cirrus
Logic changed its name for Ambient Technologies. Chipset commands
are still the same. Recently they have been bought out by Intel. |
| AC-Link
(Manufactured by Motorola, PC
Tel, Conexant, Smart
Link, AMR, and GVC) |
+MS=V34 |
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. |
| Acer
|
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
48000 |
|
|
| AMR
(Audio Modem Riser) Modems |
Smart
Link AMR:
+MS=34,0,4800,33600 (Disable V.90)
+MS=V34 (Disables 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. Other AMR makers include
Conexant, Lucent,
PC Tel, Intel,
and Motorola. |
| AOPEN
(Acer) |
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 |
| Apple:
Global
Village (including: Geoport
& Teleport) |
AT&F1W1
(Older models)
AT&F1W2 - Global Village Init
|
Global
Village technical support documents. Boca
recently bought Global Village out and has put them under the
control of their subsidiary of Zoom.
For dial-up customers who need a PPP client have them check
out: The
FreePPP Homepage. |
| Apple:
G3, G4, or iMac Internal Modem (GV Internal) |
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. |
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). Getting
56k connections with a Mac. Troubleshooting
TCP/IP. |
| AT&T
WinModem |
See
LT Winmodem |
|
| Aureal
SoundCom
|
*MM12
(Disable v.90) |
Aureal
has gone out of business and sold their technology to Creative
Labs. At this juncture Creative Labs offers no tech support
for these legacy products. Windrivers.com has drivers, manuals,
and info listed here
on Aureal products. The FAQ is here.
|
| Avtek
Megamodem 2000 (CD 2000) |
+MS=(11,12,56),1,300,40000 |
|
| Aztech |
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. |
| Boca |
+MS=11,1 |
|
| Boca
Kflex V2.060.K |
+MS=11,1 |
|
| Broadcom
BCM |
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.
|
| Cirrus
Logic (Now Intel) |
+MS=V34,1,0,33600
(x2/v90 off)
+MS=X2,0 (disable v90 only) |
Modem
Response: ati3=cl-md5620dt-qc-bc
Cirrus Logic changed its name to Ambient,
but was recently bought out by Intel.
For generic drivers check here. |
| CLMD56 |
see x2/v90 US Robotics |
|
| Compaq |
-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=0
|
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.
Compaq
modem drivers.
Compaq
system drivers.
Compaq
Reference Library. |
| Conexant
(Fomerly Rockwell) |
+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.
|
| Creative
Labs ModemBlaster |
+MS=V34
(disable v90- Conexant) |
Creative
Labs Tech Support Wizard |
| Diamond
(Supra) |
SupraMax 56i PCI:
AT&F+MR=1;+MS=V34,0 (Disable v.90)
AT&F+MR=1;+MS=V90,0 (Enable v.90)
Supra PCI:
AT&F+MS=11,0 (Disable v.90)
Supra Express PCI: AT&FW2+MS=11,1 (disable V.90)
SupraExpress USB:
S38=0 (Disable v.90)
AT&FS9=20S10=60 (Not sure what is does, but it makes the SupraExpress
USB connect with line noise).
Diamond Voice PCI:
-V90=0 (Disable v.90) |
Driver
v2.03 works, v2.04 has been known to have connection issues.
Diamond
Tech Wizard (Find additional initialization strings etc...) |
| Dyna
Link 56k PnP |
+MS=11
(Disable V.90) |
|
| ESS
(Also called Teledrive) |
+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. |
| Gateway |
-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)
-GTW V.92: +MS=V34 (Disables V.92) |
|
| Hayes |
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. |
HSP
(see PC Tel)
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)
Lowering the FIFO Buffers in the modem's properties can help
control error loss thus allowing you to stay on in times of
line noise, however it should be noted that in some instances
this could lead to a blue screen in Windows. If so simply return
the FIFO buffers to their default settings.
|
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. |
Intel
Modems
(MD563X, MD566X and MD567X) |
Disable
V.90:
+MS=V34,1,0,0
or
+MS=V34,1,300,28800 |
See
Intel Modems FAQ for more info. MD563X-HaM is a "Host
Accelerated Modem" PCI chipset (read
about software modems for more info on how this could impact
your connectivity). They use the AMR interface.
The MD566X is an ISA, serial, & PMCIA modem. The MD567X
is a USB modem. Here
is a list of some modem utilities and helpers for Intel modems
that are no longer support/manufactured by Intel. Intel modem
drivers are here. |
| K-Flex
Generic |
(K-Flex)
AT+MS=56,1,300,42000 |
|
