Modem Init
Strings

 

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Modem Initializations Strings
(The numbers in the strings represent suggested connect speeds ie. +ms=,,,40000 will make the modem connect at maximum of 40k, telephone line permitting)

Setting a Modem Init String in Windows 98/ME.
Click on Start
Click on Settings
Click on Control Panel
Click on Modems
One left click on the modem you wish to set the Init String (usually one)
With the modem highlighted, Click on Properties below
Click on the Connection tab
Click on Advanced
In the Extra Settings Box, type the required init string
Click ok and then OK again then close.
The init string will be used the next time you dial in.

Setting a Modem Init String in Windows XP.
Click on Start
Click on Settings
Click on Control Panel
Click on Modems
One left click on the modem you wish to set the Init String (usually one)
With the modem highlighted, Click on Properties below
Click on the Advanced Tab
In the Extra Initilisation Box, type the required init string
Click OK and then OK again then close.
The init string will be used the next time you dial in.

Windows Vista
Click Start.
Open the Control Panel.
Open the Phone and Modem Options control panel. If its not visible click the Change to Classic View option on the left hand side.
Select the Modems tab.
You will see your installed modems listed along with the COM ports they are attached to. Select you modem from the list and click the Properties button. There can be a slight delay while Windows retrieves the necessary information.
Click on the Change settings button this will pop open a new modem properties window.
Select the Modem tab.
Select the Advanced tab.
You can enter modem commands into the Extra initialisation commands text box, this setting is only available after clicking Change settings under General.
Click the Change Default Preferences button.
Click the OK button again to close the Modem Specific Properties window.
Click the OK button to close the Phone and Modem Options window.

(Note: Please be aware that speeds inside the curved brackets are not part of the init string. You can change speeds as you wish, but be careful as only certain speeds can be accepted in some cases i.e. flex modems don't accept 41333)

AC97 Datafax Modem +ms=,,,,,40000
Acer K56 Flex PC Internal Modem +ms=,,,40000   
Acer Modem II Surf +ms=,,,40000   
Agere (Lucent) Systems PCI Soft Modem +ms=,,,,,41333 +ms=V34
Agere AC97  Modem -V90=12 (41.3k) -V90=0 (33.6k)
Aopen FM56-PM (conextant) +ms=,,,,,41333 +ms=V34 (33.6K)
AMR  Fax Voice modem (conexant) +ms=,,,,,44000  
Aztech 56k USB Modem (Manual)  +ms=,,,41333  +MS=34 (33.6k)
Aztech CNR V.92   +ms=34 (33.6k)
Aztech MR2800 Data Fax/Modem +ms=,,,,,41333 +ms=34 (33.6k)
Banksia External 56k Modem +ms=,,,40000   
Best Data Fax Modem (Homepage) +ms=,,,,41333,41333 +ms=V34 (33.6k)
D-Link DFM-562IS HSFi PCI +ms=,,,,,41333  
D-Link DFM-560E  +ms=,,,,,41333  
D-Link FM-56SA-SCMV +ms=,,,40000  
Dlink DU-562M +ms=,,,,,41333 +ms=V34 (33.6k)
Diamond Voice ActionTek  -V90=12 (41.3k)   
Dynalink USB DL1456 VQE-RE (Rockwell) +ms=,,,,,40000  +ms=V34
Dynalink V1456 VQE (Manual) *i11 (41.3k) 

or +ms=,,,41333

&U1 (33.6K) &U1 *I12 (28.8K)
Diamond Voice 56K External Actiontec &F S38=11 S109=2 (41.3k) &F S38=0 S109=2 (33.6k)
Diamond Voice 56SE S38=11 (41.3k) S38=0 S37=17 (28.8K)
ESS ES56h-PI Data Fax Voice    +ms=V34,,,28800
Genius GM56flex-V +ms=,,,44000  +ms=11 (33.6k)
Genius GM56PCI-L -v90=12 (41.3k) -v90=0 s38=0 (33.6k)
-v90=0 s38=0 s37=17 (28.8k)
GVC Data Fax Modem +ms=,,,,,41333 +ms=V34 (33.6k)
HSP 56K MIcro Modem +ms=,,,44000
+ms=,,,41333

+ms=V34 (33.6k)
IBM DataFax Modem +ms=,,,,,41333 +ms=V34
Intel R536 EP +ms=,,,41333 +ms=V34 (33.6k)
PC TEL HSP56 MR n0s37=14s34=15 (48k)
n0s37=14s34=10 (41.3k)
n0s37=12 (disables V90&Flex ) 33.6k

n0s37=12s34=11 (28.8k)

Lucent LT (41.3k connect speed) -V90=12 (41.3K) -V90=0 S38=0 (33.6K)
Lucent AMR    +ms=V34 (33.6k)
Maestro Modems +ms=,,,40000 +ms=11 (33.6K)
Motorola SM56 %B42 (42K)  %B16 (28.8k)
Netcomm 56K (Inmodem 56) (Manual) -V90=12 (41.3K)
-V90=0 S38=0 (33.6K)
-V90=0 S38=0 S37=14 (21.6K) 

-V90=0 S38=0 S37=18
(28.8K)

Netcomm Mega I Modem (Manual) -V90=12 (41.3k)   
Netcomm i-modem 56 s38=21 (41.3k) s38=0 (33.6k)
Netcomm Rave 56k USB Modem Manual        
Netcomm Inmodem 56K [IN5692] -V90=12 (41.3k) -V90=0 S38=0 (33.6k)
Netcomm Roadster V.92 (Manual) +ms=V90,,,41333 +ms=V34 (33.6k)
Netcomm Roadster II 56Ultra +ms=,,,41333   
Net Cruiser 56k (older flex models) +ms=,,,44000 +ms=11
Net Cruiser 56k (conexant model) +ms=,,,,,41333 +ms=V34
Net Express 56k +ms=,,,40000    
Olympic  +ms=,,,41333   
Pegas USB Aztech  UM9800 S38=11 S109 =2 (40k) S38=0 S109=0
Ritmo Modem +ms=,,,44000
Rockwell HCF / Conexant or  and SoftK56  +ms=,,,,,44000 +ms=V34 (33.6K)
Rockwell DSP +ms=,,,41333  
Smartlink 56k Modem +ms=,,,41333 +ms=34 (33.6k)
Smartlink 56K Riser +ms=,,,41333  
Soft V92   +ms=V34 (33.6k)
Speed  Demon (Manual) +ms=,,,41333 +ms=V34B (33.6K)
Spirit Hornet V.90 +ms=,,,,,41333 +ms=V34
Spirit Magnum TP560i (Manual) &U1 (33.6k)
&U1*11(26.4k)
&U0*I11 (41.3k)
Spirit  (Generic) More info +ms=,,,41333 +ms=11 (33.6k)
Supervoice 56k Modems +ms=,,,,,40000    
SwannSmart Demon (Manual) +MS=V34,,,28800   
SwannSmart Turbo (Manual)

(tip: Must use manufacturers drivers for AT commands to work)

   +ms=V34,,,33600
SwannSmart 2 (Internal)    +ms=V34 (33.6k)
SwannSmart II (Intel) ATS37=23 (44k)
ATS37=26 (48k)
 
SwannSmart ST (Manual)   +ms=34 (33.6k)
Supra Express 56i Pro +ms=,,,,,41333 +ms=v34 (33.6k)
Toshiba Internal V.90 Modem +ms=,,,,,44000    
Toshiba AMR (laptop modem) +ms=,,,44000   
Toshiba Software Modem +ms=,,,41333 +ms=V34 (33.6k) or +ms=V34,,,28800 (28.8k)
US Robotics +ms=,,,,,41333   
US Robotics 56 WIN &N27 (41k), &N23 (36k)
Xircom Laptop Modem     s38=0 (33.6k)

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