V.90 Help: U-Z Modem Database

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Modem Database:
0-9	A-K	L-T	U-Z

V.90 Help: U-Z Modem Database

Manufacturer	Initialization String(s)	Additonal Information
US Robotics (Formerly 3Com)	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 )	US Robotics has been sold to Accton Technology and NatSteel Electronics. US Robotics now no longer is affiliated with 3Com as a result. Some USR X2 modems can connect, but can't transfer data. Customers with this problem should put in S15=128 and update their drivers. USR Modem Update Wizard Generic US Robotics non-Winmodem driver is here.
US Robotics Courier	S58=1 (Disable X2) S27=32(Disable V.42) S58=32 (Disable V.90) S58=33 (Disable V.90 & X2)
Venus PCMCIA (see LT Venus)	S38=0
Viking	PC Card (PCMCIA)- +MS:11,1,300,33600,0,0 (Disable v.90) +MS=V34 (Disable v.90)
VIVA	+MS=11,1	Modem Response ati3=V2.081-07
X2 type generic modem	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.
Winmodem	S38=0 (disables K-Flex)	Most generic Winmodems use the Lucent Chipset. However, Conexant chipset Winmodems are starting to increase.
Xircom		Laptop PCMCIA card modems.
Zoom	S109=0 Zoom 2919: AT$$CW3 PCI: -V90=0 or +MS=V34 (disables V.90) USB: +MS=V34 (disables V.90) External: +MS=11,1 (disables V.90)	More info about Zoom can be foud at: 8080hi.com or use the Zoom Q&A Search Engine to find additional init strings. The PCI based V.90/V.92 modem uses either the Conexant or Lucent chipset. The USB based V.92 uses the Conexant chipset. The External/Serial modems generally uses the Rockwell Dual chipset.

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