US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Manuale Utente Scaricare il pdf (Pagina 19)

56K Softmodem

Command Reference

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Table 3-8: ATI11 Command Results

Note:* MNP is a trademark of Microcom Sysems, Inc.

Result Description

Last Connection V.92, V.90, V.34, or V.32, depending on the type of connection negoti-

ated.

Initial Transmit Carrier Rate Initial upstream rate.

Initial Receive Carrier Rate Initial downstream rate.

Final Transmit Carrier Rate Current or final upstream rate.

Final Receive Carrier Rate Current or final downstream rate.

Protocol Negotiation Result LAPM, MNP *, or none, depending on V.42 negotiation.

Data Compression Result LAPM, MNP, or none, depending on V.42 negotiation.

Estimated Signal/Noise Ratio Signal to noise ratio with implied negative. Higher values indicated better

conditions.

Receive Signal Power Level (–dBm) The received signal power, although labeled with units of –dBm, is only a

relative measure for comparing calls to/from different locations. This

value is valid only during a call.

Transmit Signal Power Level (– dBm) Upstream transmit signal power.

Round Trip Delay (ms) Round trip delay in milliseconds.

Near Echo Level (–dBm) Near echo levels only.

Far Echo Level (–dBm) Far echo levels only.

Transmit Frame Count Number of LAPM frames sent upstream during this call. Count wraps

around at 65535.

Transmit Frame Error Count Number of REJ frames received at the analog client modem.

Receive Frame Count Number of LAPM frames received by the client during this call. Count

wraps around at 65535.

Receive Frame Error Count Number of frames received in error by the client.

Retrain by Local Modem Number of retrains or rate renegotiations requested by the modem.

Retrain by Remote Modem Number of retrains or rate renegotiations requested by the remote

modem.

Call Termination Cause Reason for call ending. Only valid after call ends. Result codes are as fol-

lows: • 0 = local modem command: ATH, DTR drop. • 1 = remote modem:

cleardown, loss of signal. • 2 = no answer, busy, etc. • 3 = training failure

V.90 or V.34. • 4 = protocol failure if required by \N4, for example.

Robbed-Bit Signaling For PCM connection only, a hexadecimal 6-bit pattern of T1 frames with

robbed-bit signaling.

Digital Loss (dB) For PCM connection only, the downstream digital loss.

Remote Server ID

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1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 107 108

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US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Manuale Utente Pagina 19