16 Introduction
Features
56K data commu- | The internal modem uses the V.92 protocol to |
nication | connect to host V.92 modems at data rates of |
| up to 53,000 bits per second (bps). It uses the |
| V.90 protocol to connect at data rates of up to |
| 53,000 bps when connecting to a V.90 host |
| modem. For connections that do not support |
| either the V.90 or V.92 protocol, the internal |
| modem uses the ITU standard V.34 protocol |
| to connect at rates of up to 33,600 bits per |
| second. The internal modem also supports all |
| of the earlier, |
| modem protocols. |
Fax capability | You can use the internal modem to transmit |
| and receive facsimiles at rates of up to 14,400 |
| bps. The internal modem supports Class 1 fax |
| transmission. |
Standard com- | The internal modem is compatible with the |
mands | industry standard Hayes® AT commands and |
| |
Error control | This feature assures accurate data transmis- |
| sion even over telephone lines subject to |
| noise interference. The internal modem uses |
| Microcom Networking Protocol® 4 (MNP4) |
| and V.42 error correction. |
Data compression | Compression can greatly increase data |
| throughput. The internal modem supports the |
| new V.44 compression protocol, which is |
| optimized for World Wide Web browsing. It |
| also supports MNP5 and V.42bis data com- |
| pression protocols. |
Serial port access | The internal modem frees your computer’s |
| serial port for connection of a serial mouse, |
| serial printer or other serial device. |