Appendix F: S Registers
59
Register
Range/Value
Default
Function
S86
0, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14
none
Call failure reason code
0
Normal disconnect, no error
4
Loss of carrier
5
V.42 negotiation failed to
detect error correction modem
at remote end
6
No response to feature
negotiation
7
This modem is asynch only;
remote modem is synch only
8
No framing technique in
common
9
Modems could not find a
common protocol
10
Bad response to feature
negotiation
11
No synch information from
remote modem
12
Remote modem initiated a
normal disconnect
13
Remote modem does not
respond after 10 message re-
transmissions
14
Protocol violation
S95
Add numbers
below for desired
messages:
0
Extended result codes
0
CONNECT gives computer-to-
modem (DTE) speed
1
CONNECT gives DCE speed
2
/ARQ after CONNECT if error
correction is active
4
CARRIER message
8
PROTOCOL message
32
COMPRESSION message