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Appendix D      Provisioning an ISDN Line
ISDN Leased-Line Speeds
ISDN Leased-Line Speeds
The Cisco 800 series routers support ISDN leased-line speeds of 64, 128, 
and 144 kbps.
Ordering an ISDN Line
To order an ISDN BRI line, you need to contact your telephone service provider 
(usually the telephone company) and do the following:
Step 1Order a single 128-kbps ISDN BRI line for your router.
The ISDN BRI service provides two bearer channels (B channels) and one data 
channel (D channel). B channel service operates at 64 kbps and carries user data. 
D-channel service operates at 16 kbps and carries control and signaling 
information, although it can support user data transmission.
Step 2Order the data and voice features that you want.
If you are planning to use an NI1 switch, you can order a capability package 
described in the “NI1 Capability Packages and National ISDN Ordering Codes” 
section in this appendix. If you are planning to use a switch other than an NI1 
switch, refer to the provisioning summary information described in either the 
“Lucent 5ESS Custom Switch” and “Nortel DMS-100 Custom Provisioning” 
sections in this appendix to select features.
Step 3If you have Cisco 803 or Cisco 804 routers, order the additional call offering 
option if desired.
With this feature, the router can handle voice calls while in use. 
Step 4Obtain and record the following information from your telephone service 
provider:
a.ISDN switch type. 
b.Service profile identifiers (SPIDs). SPIDs are numbers assigned only by 
North American telephone service providers. SPIDS identify the ISDN B 
channels. The SPID format is generally an ISDN telephone number with  
						

							 
Appendix D      Provisioning an ISDN Line
Router Software Configuration Requirements
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several numbers added to it, for example, 40855512340101. Depending on 
the switch type that supports your ISDN BRI line, your ISDN line could be 
assigned none, one, or two SPIDs.
Router Software Configuration Requirements
This section lists configuration requirements for Cisco 800 series routers when 
using specific BRI switch types.
NI1 Switch
The following table lists the router configuration requirements when using 
Cisco 800 series routers with a Lucent 5E NI1 switch in a multipoint 
configuration.
NoteThe NI1 switch does not support a point-to-point configuration.
Table D-8 NI1 Configuration
Parameter Configuration Software Command
Switch type NI1isdn switch-type 
basic-ni1
1
1. If the automatic detection of ISDN switch type is enabled, you do not need to enter this command.
SPID, directory 
numberCisco 801 and 802 routers 
require one SPID; 
Cisco 803 and 804 routers 
require two SPIDs.isdn spid1 spid-number 
ldn2
isdn spid2 spid-number 
ldn
2. If the automatic detection of SPIDs is enabled, you do not need to specify the actual SPID number 
provided by your telephone service provider; instead, you can specify any number or numerical 
string, such as 0. 
						

							 
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Appendix D      Provisioning an ISDN Line
Router Software Configuration Requirements
Lucent 5ESS Custom Switch
This section describes the router configuration requirements for using 
Cisco 800 series routers with a Lucent 5ESS custom switch.
Point-to-Point Configuration
Ta b l e D - 9 lists the router configuration requirements for using a Lucent 5ESS 
custom switch in a point-to-point configuration.
Multipoint Configuration
Ta b l e D - 1 0 lists the router configuration requirements for using Lucent 5ESS 
custom switch in a multipoint configuration.
Table D-9 Lucent 5ESS Custom Point-to-Point Configuration
Parameter Configuration Software Command
Switch type 5ESSisdn switch-type 
basic-5ess
1
1. If the automatic detection of ISDN switch type is enabled, you do not need to enter this command.
SPIDs, directory 
numberSPIDs are not required; 
directory number is 
optionalisdn spid1 spid-number 
ldn2
isdn spid2 spid-number ldn
2. If SPIDs are not used or if the automatic detection of SPIDs is enabled, you do not need to specify 
an actual SPID number provided by your telephone service provider; instead, you can specify any 
number or numerical string, such as 0.  
						

							 
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Router Software Configuration Requirements
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Nortel DMS-100 Switch
This section describes the router configuration requirements for using 
Cisco 800 series routers with a DMS-100 switch.
Configure a Router Only
Ta b l e D - 1 1 lists the router configuration requirements for using the router only on 
a Nortel DMS-100 line.
Table D-10 Lucent 5ESS Custom Multipoint Configuration
Parameter Configuration Software Command
Switch type 5ESSisdn switch-type 
basic-5ess
1
1. If the automatic detection of ISDN switch type is enabled, you do not need to enter this command.
SPIDs, directory 
numberCisco 801 and Cisco 802 
routers require one SPID; 
Cisco 803 and Cisco 804 
routers require two SPIDs; 
directory number is 
recommendedisdn spid1 spid-number 
ldn2
isdn spid2 spid-number 
ldn
2. If the automatic detection of SPIDs is enabled, you do not need to specify the actual SPID number 
provided by your telephone service provider; instead, you can specify any number or numerical 
string, for example, 0.
Table D-11 Nortel DMS-100—Router Only
Parameter Configuration Software Command
Switch type DMSisdn switch-type 
basic-dms100
1
1. If the automatic detection of ISDN switch type is enabled, you do not need to enter this command.
SPIDs, directory 
numbersTwo requiredisdn spid1 spid-number ldn2
isdn spid2 spid-number ldn 
						

							 
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Appendix D      Provisioning an ISDN Line
Router Software Configuration Requirements
Configure a Router and One Device
Ta b l e D - 1 2 lists the router configuration requirements for using a Nortel 
DMS-100 switch when using the router and one device on the ISDN line.
NoteIn this configuration, the router can use only one B channel. 
Configuration Requirements for Switches Outside North America
ISDN BRI lines used outside North America are not assigned SPIDs. The optional 
argument, spid-number, in some of the software commands should be ignored or 
omitted if you are connecting to a line that does not use SPIDs.
2. If the automatic detection of SPIDs is enabled, you do not need to specify the actual SPID number 
provided by your telephone service provider; instead, you can specify any number or numerical 
string, such as 0.
Table D-12 Nortel DMS-100—Router and One Device
Parameter Configuration Software Command
Switch type DMSisdn switch-type 
basic-dms100
1
1. If the automatic detection of ISDN switch type is enabled, you do not need to enter this command.
SPIDs, directory 
numberOne requiredisdn spid1 spid-number 
ldn2
isdn spid2 spid-number 
ldn
2. If the automatic detection of SPIDs is enabled, you do not need to specify the actual SPID number 
provided by your telephone service provider; instead, you can specify any number or numerical 
string, such as 0. 
						

							 
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Router Software Configuration Requirements
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1TR6 Switch
The 1TR6 lines can be configured for multiple subscriber numbers, usually 
referred to as “extended addressing” in Germany. The line is usually assigned a 
group of eight sequential directory numbers that can be used for the different 
pieces of terminal equipment used on the BRI line. These numbers are also used 
for allocation to the analog telephone port and for call routing. 
						

							 
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APPENDIXE
ISDN BRI Cause Values
This appendix describes ISDN BRI standard cause values that might be received 
from the ISDN switch when using Cisco 800 series routers. These values are sent 
from the ISDN switch to the router to indicate ISDN call status.
Although telephone service providers generally define cause messages with 
decimal values, Cisco 800 series routers display the hexadecimal (or hex) 
translation of the decimal value.
Cause values are standardized; however, each telephone service provider uses its 
own version of the cause message wording. Therefore, the cause messages shown 
in Ta b l e E - 1 might not match the messages exactly as they appear on the terminal.
Ta b l e E - 1 lists the ISDN BRI cause values, the hexadecimal translation, the cause 
message, and a short definition of the cause message.
Table E-1 ISDN BRI Cause Values and Cause Messages
Cause Value1Hex Value2Cause Message Definition
1 0001 Unassigned number. The ISDN number was sent to the switch 
in the correct format; however, the 
number is not assigned to any destination 
equipment.
2 0002 No route to specified transit 
network.The ISDN exchange is asked to route the 
call through an unrecognized 
intermediate network.
3 0003 No route to destination. The call was routed through an 
intermediate network that does not serve 
the destination address. 
						

							 
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6 0006 Channel unacceptable. The service quality of the specified 
channel is insufficient to accept the 
connection.
7 0007 Call awarded and delivered. The user is assigned an incoming call 
that is connected to a channel with an 
established call.
16 0010 Normal call clearing. Normal call clearing has occurred.
17 0011 User busy. The called system acknowledges the 
connection request but is unable to 
accept the call because all B channels are 
in use.
18 0012 No user responding. The connection cannot be completed 
because the destination does not respond 
to the call.
19 0013 No answer from user (user 
alerted).The destination responds to the 
connection request but fails to complete 
the connection within the prescribed 
time. The problem is at the remote end of 
the connection.
21 0015 Call rejected. The destination is capable of accepting 
the call, but rejected the call for an 
unknown reason.
22 0016 Number changed. The ISDN number used to set up the call 
is not assigned to any system. (If an 
alternate address is assigned to the called 
equipment, it might be returned in the 
diagnostic field of this message.)
26 001A Nonselected user clearing. The destination is capable of accepting 
the call but rejected the call because it 
was not assigned to the user.
Table E-1 ISDN BRI Cause Values and Cause Messages (continued)
Cause Value1Hex Value2Cause Message Definition 
						

							 
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Appendix E      ISDN BRI Cause Values
27 001B Destination out of order. The destination cannot be reached 
because the interface is not functioning 
correctly, and a signaling message 
cannot be delivered. This might be a 
temporary condition but could last for an 
extended period of time. For example, 
the remote equipment might be turned 
off.
28 001C Invalid number format. The connection could not be established 
because the destination address was 
presented in an unrecognizable format or 
because the destination address was 
incomplete.
29 001D Facility rejected. The facility requested by the user cannot 
be provided by the network.
30 001E Response to STATUS 
ENQUIRY.The status message was generated in 
direct response to the receipt of a status 
inquiry message.
31 001F Normal,  unspecified. Reports the occurrence of a normal event 
when no standard cause applies. No 
action required.
34 0022 No circuit or channel 
available.The connection cannot be established 
because no appropriate channel is 
available to take the call.
38 0026 Network out of order. The destination cannot be reached 
because the network is not functioning 
correctly, and the condition might last for 
an extended period of time. An 
immediate reconnect attempt will 
probably be unsuccessful.
41 0029 Temporary  failure. An error occurred because the network is 
not functioning correctly. The problem 
will be resolved shortly.
Table E-1 ISDN BRI Cause Values and Cause Messages (continued)
Cause Value1Hex Value2Cause Message Definition 
						

							 
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42 002A Switching equipment 
congestion.The destination cannot be reached 
because the network switching 
equipment is temporarily overloaded.
43 002B Access information discarded. The network cannot provide the 
requested access information.
44 002C Requested circuit or channel 
not available.The remote equipment cannot provide 
the requested channel for an unknown 
reason. This might be a temporary 
problem.
47 002F Resource unavailable, 
unspecified.The requested channel or service is 
unavailable for an unknown reason. This 
might be a temporary problem.
49 0031 Quality of service 
unavailable.The requested quality of service (as 
defined by CCITT
3 recommendation 
X.213) cannot be provided by the 
network. This might be a subscription 
problem.
50 0032 Requested facility not 
subscribed.The remote equipment supports the 
requested supplementary service, but 
only by subscription.
57 0039 Bearer capability not 
authorized.The user requested a bearer capability 
(BC) that the network provides, but that 
the user is not authorized to use. This 
might be a subscription problem.
58 003A Bearer capability not 
presently available.The network normally provides the 
requested BC but not at the present time. 
This might be due to a temporary 
network problem or to a subscription 
problem.
63 003F Service or option not 
available, unspecified.The network or remote equipment was 
unable to provide the requested service 
option for an unspecified reason. This 
might be a subscription problem.
Table E-1 ISDN BRI Cause Values and Cause Messages (continued)
Cause Value1Hex Value2Cause Message Definition