NOTE: This USR Softmodem USR5639 is the recommended replacement for the discontinued USR5637.
The USR5639 does not support voice connections, modem on hold, v.22 fast connect, and some operating systems. See the transition document for details.
The USR® 56K USB Softmodem delivers the performance and reliability USR is known for in a compact, cost effective form factor. Broadly compatible with Windows including 64 bit and server systems, the modem uses the CPU of the host computer for high compression throughput due to direct parallel access.
Features include ring detection and qualification — eliminating unintended wake-on-ring events due to activity on the phone line other than ringing, as well as handling pulse dial control to eliminate system timing dependencies common with soft modems.
The USR USB softmodem is fully compatible with V.92 and lower rates, making it ideal for compact POS solutions that only require V.34.
* Capable of receiving at up to 56 Kbps and sending at up to 48 Kbps (or 31.2 Kbps with V.90 server). Due to FCC regulations on power output, receiving speeds are limited to 53.3 Kbps. Actual speeds may vary. V.92 and V.90 features require compatible phone service and support from your Internet Service Provider (ISP). USRobotics modems featuring V.92 enhancements are backward compatible and will negotiate the highest possible speed when connecting to an ISP.
† Call Waiting/Caller ID service required for utilizing Caller ID capability.
‡ USB Softmodem (USR5639) is the recommended replacement for USB Faxmodem USR5637, features and specifications do vary. It is suggested to verify requirements before purchasing replacement units.