3com 1.024.1644-00 Manual De Usuario

Descargar
Página de 81
Welcome to 56K*Information Access  
 
56K Voice Faxmodem Internal - User’s Guide 
 
The International Telecommunications Union (ITU) decides the technical 
protocols that communications devices must use to operate with each 
other. Modems that comply with ITU standards can “talk” to other 
standards-compliant modems and fax machines worldwide. 
The ITU has determined a worldwide standard for 56K modem technology. 
With a U.S. Robotics modem, you can get 56K Internet access from any 
service provider who offers the ITU V.90 standard or 3Com’s proprietary 
56K technology. 3Com is working with providers everywhere to quickly 
upgrade their service to the ITU V.90 standard. 
 
 
 
 
 
 
 
 
 In accordance with the ITU standard for V.90 transmissions, this modem is capable of 
56 Kbps downloads. However, the download speeds you experience may be lower due 
to varying line conditions and other factors. Uploads from users to server equipment 
travel at speeds up to 31.2 Kbps. An analogue phone line compatible with the ITU V.90 
standard or 3Com’s proprietary 56K technology, and an Internet provider or corporate 
host site with the ITU V.90 standard or 3Com’s proprietary 56K technology are 
necessary for these high-speed downloads. The ITU V.90 standard was officially 
determined in February, 1998 and is expected to be ratified in September, 1998. See 
www.3com.com/56k  for details.