USRobotics V.34 user manual Programmable Nonvolatile Memory

COURIER HIGH SPEED MODEMS

Programmable Nonvolatile Memory

You can tailor your own default settings and store them in non- volatile random access memory (NVRAM). Each time the Courier is powered on or reset, it operates at the settings you've specified. See Chapter 4, Appendix B, and Appendix C.

Link Rate Negotiation

The Courier automatically lowers its link rate to match a lower rate of a remote modem, in both Originate and Answer Modes, allowing connections with a wide range of installed modems.

Link Diagnostics

After each call, you can display a Link Diagnostics screen con- taining information about the last call, including the number of data characters transferred, line statistics, the call's rate and the reason the call was disconnected. See Chapter 6.

Modem Diagnostics

ITU-T V.54 loopback testing with the &T command options, and earlier Courier Register S16 test options are available. The modem performs three loopback tests: analog, digital, and remote digital. See Appendix H for information.

Inactivity Timer

You can set the modem to automatically hang up after a speci- fied number of minutes if there is no activity on the phone line. See Register S19 in Appendix B.

Call Duration Reporting

The modem records the duration of your calls in hours, minutes, and seconds. This feature enables you to display and print an audit of your calling activities. You can optionally use the modem clock as a real-time clock. See the I3 and I6 screens in Chapter 6 and the K command in Chapter 4 and Appendix C.

Call Progress Detection

An optional set of result codes (screen messages) lets you know when a line is busy, a person rather than a modem has answered the phone, there is no dial tone, or the distant phone is ringing.

1-4 Features and Compatibility