Software Flow Control .............................................................. 11-2
Received Data Flow Control ............................................................ 11-3
Transmit-Data Flow Control ............................................................ 11-5
12
H
ANDSHAKING
, E
RROR
C
ONTROL
, D
ATA
C
OMPRESSION
,
AND
T
HROUGHPUT
Handshaking .................................................................................. 12-1
Selective Reject ......................................................................... 12-1
V.34 .......................................................................................... 12-3
V.90 Capabilities ............................................................................. 12-3
Other Protocols .............................................................................. 12-3
x2 ............................................................................................. 12-3
Fast Class (V.FC) Handshaking ................................................... 12-3
HST ........................................................................................... 12-4
USR V.32terbo to USR V.32terbo ............................................... 12-4
Lower-speed V. Protocols ........................................................... 12-5
Error Control .................................................................................. 12-5
Error-Control Commands .......................................................... 12-5
V.42 Error Control ..................................................................... 12-7
MNP Error Control ..................................................................... 12-7
Error Control and Flow Control ................................................. 12-7
Data Compression .......................................................................... 12-8
V.42bis versus MNP5 Data Compression .................................... 12-8
Getting Maximum Throughput ....................................................... 12-9
Maximum throughput results when: ............................................... 12-9
13
D
ISPLAYING
Q
UERYING
AND
H
ELP
S
CREENS
Overview ........................................................................................ 13-1
Querying ........................................................................................ 13-1
Displaying Help .............................................................................. 13-3
14
T
ESTING
THE
C
ONNECTION
Overview ........................................................................................ 14-1
Testing the Business Modem using AT&Tn ...................................... 14-2
Analog Loopback Testing .......................................................... 14-3
Stopping a Test (AT&T0, ATS18) ................................................ 14-3
