![background image](http://html1.mh-extra.com/html/3com/3comimpact-iq/3comimpact-iq_user-manual_440899111.webp)
8-7
ISDN Call Waiting
does not work.
ISDN Call Waiting is disabled.
Your ISDN line is not
provisioned for ISDN Call
Waiting
ISDN Call waiting is disabled on Port 2
by default (S76=1). Use terminal
emulation software to change S76 to
the appropriate value. Refer to
Chapter B, “AT Commands, S Registers,
and Result Codes” for the available
options.
To use ISDN Call Waiting, you must
have ACO (Additional Call Offering)
provisioned on your line. Contact your
telephone company for further
assistance.
Note that ACO is not available on a
5ESS Custom switch.
Cannot place a call
when a Multilink
PPP call is active
(DBA).
DBA is not enabled.
Make sure DBA is enabled by setting
S70. Refer to Chapter B, “AT
Commands, S Registers, and Result
Codes” for the available options.
Cannot receive an
incoming voice call
during a Multilink
PPP session.
DBA is not provisioned on
your ISDN line
To use incoming DBA, you must have
ACO (Additional Call Offering)
provisioned on your line. Contact your
telephone company for further
assistance.
Note that ACO is not available on a
5ESS Custom switch
Table 8-1
Symptoms, Causes, and Solutions
Symptom
Possible Cause
Solution
Summary of Contents for 3COMIMPACT IQ
Page 1: ... 3COMIMPACT IQ EXTERNAL ISDN MODEM USER GUIDE Part No 09 0885 001 Published July 1997 ...
Page 4: ......
Page 12: ......
Page 64: ...3 34 CHAPTER 3 CONFIGURATION FOR AN IBM COMPATIBLE PC RUNNING WINDOWS ...
Page 90: ...5 6 CHAPTER 5 ADVANCED CONFIGURATION ...
Page 132: ...B 10 APPENDIX B AT COMMANDS S REGISTERS AND RESULT CODES ...
Page 136: ...C 4 APPENDIX C SPECIFICATIONS ...
Page 140: ...D 4 APPENDIX D CONFIGURATION USING DOS ...
Page 146: ...6 GLOSSARY ...
Page 153: ...Windows NT 3 5 1 3 17 Windows NT 4 0 3 20 ...
Page 154: ......