Hardware manual

5901 High Speed Dialup Modem Hardware Manual
October 19, 2007
83
S46=136 Execute error correction protocol with no compression.
S46=138 Execute error correction protocol with compression. (Default.)
11.35 S48 - V.42 Negotiation Action
The V.42 negotiation process determines the capabilities of the remote modem. However, when the
capabilities of the remote modem are known and negotiation is unnecessary, this process can be
bypassed if so desired.
Range: 0, 7, or 128 If an invalid number is entered, it is accepted into the S-Parameter, but S48 will
act as if 128 has been entered.
Default: 7
S48=0 Disable negotiation; bypass the detection and negotiation phases; and
proceed with LAPM.
S48=7 Enable negotiation. (Default.)
S48=128 Disable negotiation; bypass the detection and negotiation phases; and
proceed at once with the fallback action specified in S36. Can be used to
force MNP.
11.36 S86 - Call Failure Reason Code
When the modem issues a NO CARRIER result code, a value is written to S86 Register to help
determine the reason for the failed connection. S86 records the first event that contributes to a NO
CARRIER message. The code definitions are:
Range: 0-26
Default: 21
S86=0 Normal hangup, no error occurred.
S86=1 Reserved.
S86=2 Reserved.
S86=3 Call Waiting caused disconnect.
S86=4 Physical carrier loss.
S86=5 No error correction at the other end.
S86=6 No response to feature negotiation.
S86=7 This modem is async only; the other modem is sync only.
S86=8 No framing technique in common.
S86=9 No protocol in common.
S86=10 Bad response to feature negotiation.
S86=11 No sync information from the remote modem.
S86=12 Normal hangup initiated by the remote modem.
S86=13 Retransmission limit reached.
S86=14 Protocol violation occurred.