3Com Nbx 100 And Ss3 Nbx Administration Guide

Receiving Calls451
Attendant ConsoleBy convention, NBX systems reserve extension 100 or 1000 for the 
Attendant Console (receptionist), although the Attendant Console can be 
assigned any internal extension number. Outside callers cannot reach 
internal extensions without operator involvement when incoming calls 
are directed to the Attendant Console. See “Adding an Auto Attendant”
 
in Chapter 6
.
Other ExtensionsIncoming H.323 calls can be routed directly to some other extension or to 
a phantom...

452APPENDIX A: CONNEXTIONS H.323 GATEWAY
Handling 
Conference CallsYou can include gateway port connections in local conference calls along 
with PSTN line connections. However, ConneXtions does not support 
conferences at the H.323 level, so, if two or more of the conferring 
parties are at a remote NBX system, each requires a separate port 
connection. This characteristic determines who can initiate the 
conference call.
A four-way conference call with three people at one NBX site and one 
person at...

B
ISDN COMPLETION CAUSE CODES
This appendix lists the Completion Cause Codes displayed in the Span 
Status dialog box. The codes, listed in Table 80
, detail the reasons for the 
termination of a call. See “Configuring and Managing E1 
Digital Line Cards” in Chapter 3.
These completion cause codes descriptions are guidelines only. 
The detailed cause may vary according to PSTN.
Table 80   Completion Cause Codes
Class GroupingHex Code
Decimal 
Code
DescriptionDetails
Normal events0x000No diagnostic...

454APPENDIX B: ISDN COMPLETION CAUSE CODES
0x1521Call rejectedEquipment sending the cause does not wish to accept 
this call although it is not busy or incompatible.
0x1622Number 
changedThe called party number is not assigned.
0x1A26Non-selected 
user clearingThe user has not been awarded the incoming call.
0x1B27Destination out 
of orderThe destination interface is not operating correctly.
0x1C28Invalid number 
formatThe called party number is invalid, or incomplete.
0x1D29Facility rejectedThe network...

455
Service or option 
not available0x3149Quality of 
service 
unavailableThroughput or transit delay cannot be supported and 
that the Quality of Service (as defined in 
Recommendation X.213) cannot be provided.
0x3250Facility not 
subscribedThe requested supplementary service could not be 
provided by the network because the user has not 
completed the necessary administrative arrangements 
with its supporting networks.
0x3452Outgoing call 
barred
0x3654Incoming call 
barred
0x3957Bearer 
capability...

456APPENDIX B: ISDN COMPLETION CAUSE CODES
0x5383Suspended call 
exists, call 
identity does 
notA call resume has been attempted with a call identity 
that differs from that in use for any currently 
suspended calls.
0x5484Call identity in 
useThe network has received a call suspended request 
that contained a call identity (including the null call 
identity) that is already in use for a suspended call 
within the domain of interfaces over which this call 
may be resumed.
0x5585Incompatible...

457
0x64100Invalid element 
contentsThe equipment sending this cause has received an 
information element that it has implemented. 
However, the sending equipment was not able to 
implement the code because one or more of the fields 
were incorrectly coded.
 
0x65101Wrong 
message for 
stateThe received message is incompatible with the call 
state.
0x66102Timer expiryA timer has expired and an associated Q.931 error 
handling procedure has been initiated.
0x67103Mandatory IE 
length error
0x6F111Protocol...

458APPENDIX B: ISDN COMPLETION CAUSE CODES 

C
CONFIGURING OPTION 184 ON A 
W
INDOWS 2000 DHCP SERVER
OverviewWhen you configure option 184 on a Windows 2000 DHCP server, you 
enable the server to pass the IP address of the NBX Call Processor to NBX 
devices such as telephones.
This appendix provides information on how to configure option 184 on 
an existing Windows 2000 server system that has been configured to run 
the DHCP server software.
Assumptions
■The information in this appendix pertains only to a Windows 2000 
server. The configuration...

460APPENDIX C: CONFIGURING OPTION 184 ON A WINDOWS 2000 DHCP SERVER
3Click Add. The Option Type dialog box appears.
4In the Name field, type a name of your choice. For example, because you 
are configuring this option to work with the NBX system, you might 
choose NBX as the name.
5From the Data Type pull-down list, select Byte.
6Enable the Array check box.
7In the Code text box, type 184.
8In the Description text box, enter a description of your choice. Example: 
NBX NCP IP Address.
9Click OK.
In the...