isdn overlap-receiving

isdn overlap-receiving

interface

isdn overlap-receiving
no isdn overlap-receiving

Configures

ISDN overlap receiving

Default

Disabled

Description

This command enables ISDN overlap receiving for an interface. In this mode, the interface waits for additional information from the switch before establishing the call. This command can be useful when carrying voice traffic through the router.

isdn send-alerting

interface

isdn send-alerting
no isdn send-alerting

Configures

Sending an Alerting message

Default

Disabled

Description

This command enables the sending of an Alerting message before a Connect message when making ISDN calls. Some types of switches want to receive an Alerting message before a Connect message.

isdn sending-complete

interface

isdn sending-complete
no isdn sending-complete

Configures

The sending of a Sending Complete element in the Setup message

Default

Disabled

Description

This command configures the router to include the Sending Complete element in the Setup message. Some switches require this message, which tells the switch that it has all the information for the call in the Setup message.

isdn service

interface

isdn service dsl


number


b_channel


number


state


value


no isdn service dsl


number


b_channel


number


state


value

Configures

A B channel range to a specified state

Default

Disabled

Description

This command sets a range of B channels or an entire PRI interface to "in service," "maintenance," or "out of service."

dsl number: The digital subscriber loop number.
b_channel number: The B channel or range of B channels to which the command applies. number can range from 0-24, where 0 means the entire PRI interface. A range of consecutive channels is indicated by n - m , where n and m can range from 1-24.
state value: The state to which you wish to set the channels. The state is indicated by a number between 0 and 2; 0 is for "in service," 1 is for "maintenance," and 2 is for "out of service."

isdn spid1 (spid2)

interface

isdn {spid1  spid2}


spid


[


local-directory-number


]
no isdn {spid1  spid2}


spid


[


local-directory-number


]

Configures

ISDN SPIDs

Default

None

Description

This command provides the service profile identifier (SPID) for the B1 channel ( spid1 ) or the B2 channel ( spid2 ). You can also use this command to specify the local-directory-number (optional). Your ISDN carrier (i.e., your phone company) provides the SPIDs and the local directory number. Some carriers and switch types do not require SPIDs (for example, if they are not used in Europe).

isdn switch-type

global

isdn switch-type


type


no isdn switch-type


type

Configures

ISDN switch type

Default

None

Description

There are many different types of ISDN switches in use. The router must be configured with the appropriate switch type in order to interact with the telephone network. While there are exceptions, your geographic location is the best clue to the type of switch in use. Table 17-13 lists common switch types.

Table 17-13. Common ISDN switch types

IOS type	Switch
`basic-5ess`	AT&T switches (North America)
`basic-dms100`	Northern Telecom (North America)
`basic-ni1`	National ISDN-1 (North America)
`basic-ts013`	Australian
`basic-ltr6`	German
`basic-nwnet3`	Net3 switches (Norway)
`basic-net3`	Net3 switches (Europe/Taiwan)
`basic-nznet3`	Net3 switches (New Zealand)
`vn2`	VN2 (French)
`vn3`	VN3 (French)
`ntt`	NTT (Japan)