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Supported MIBS and RFCs

For details about software conﬁguration, see the Cisco IOS Release 12.0 software document, Dial

Solutions Conﬁguration Guide. For more information about the physical characteristics of the BRI

network modules and their digital modem support, or instructions on how to install the network or

modem modules, either see the Cisco 3600 series Network Module Hardware Installation Guide that

came with your BRI network module or view the up-to-date information on CCO.

Supported MIBS and RFCs

None.

Conﬁguration Tasks

The Modem over ISDN BRI feature is part of interface conﬁguration for BRI. You conﬁgure the BRI

interface after you have conﬁgured the ISDN global characteristics, which are switch type and TEI

negotiation timing. These characteristics can also be deﬁned for each BRI interface, as shown in the

steps below. For details on the global and interface conﬁguration commands, see the Cisco IOS

software document, Dial Solutions Conﬁguration Guide.

To set up the BRI interface characteristics, set the global parameters and then conﬁgure each

interface separately. Perform the following conﬁguration tasks:

Step

Cisco IOS Release 12.0(3)T

Command

Router(config)#isdn switch-type

switch-type

Router(config)#isdn tei [first-call |

powerup]

Router(config-if)#interface bri slot/port

Router(config-if)#ip address ip-address

mask

Purpose

Conﬁgure the global ISDN switch type

to match the service provider switch

type. For a list of keywords, refer to

Table 1.

Conﬁgure when the ISDN Terminal

Endpoint Identiﬁer (TEI) negotiation

occurs. If this command is not used,

negotiation occurs when the router is

powered on.

The ﬁrst-call option is primarily used

in European ISDN switch types, such as

NET3 networks. The powerup option

should be used in most other locations.

Enter interface conﬁguration mode to

conﬁgure parameters for the speciﬁed

interface.

slot is the location of the BRI module.

Valid values are from 0 to 3.

port is an interface number. Valid

values are from 0 to 7 if the module is

an eight-port BRI network module, or

from 0 to 4 if the module is a four-port

BRI network module.

Specify an IP address and subnet for the

interface. You can also specify that

there is no IP address. For information

about IP addressing, see the IOS

software document, Network Protocols

Conﬁguration Guide, Part 1.