Specifications

Configuring and Managing Integrated Modems
Managing Modems
DC-78
Cisco IOS Dial Technologies Configuration Guide
To configure a modem for leased-line operation, use the following commands in global configuration
mode:
The show modemcap command lists all the predefined modem types and any user-defined modemcaps
that are currently configured on the router:
• If the leased line has been configured, the modemcap information will be available.
• If the leased line has not been configured, only the predefined modem types will be displayed.
The important setting for leased-line support is what is defined in the modemcap as the key configuration
item and its application to the leased line. Consider the following command strings:
modemcap entry micro_LL_orig:AA=S0=0&L2
modemcap entry micro_LL_ans:AA=S0=1&L2
AA stands for autoanswer:
• The answering modem AA register is set to 1 (AA=S0=1) so that autoanswer is “on”.
• The originating modem AA register is set to 0 (AA=S0=0) so that autoanswer is “off”.
If the AA feature is used, both the originating and answering modem must be put into leased-line mode
with the &L2 AT command.
In the examples, the micro_LL_orig and micro_LL_ans strings are arbitrary text descriptions.
Note For the modemcap entry command, one of the predefined modem types may be used or a completely
user-defined modemcap may be created. For leased line, no new modem type was added. Users may
create their own modemcaps for leased-line functionality.
To configure the modem for leased-line operation, use the modemcap entry command. For each
connection, each modem must be configured as an originator or answerer.
The following example shows modemcaps for a leased-line originator and answerer and their application
to specific ports:
modemcap entry micro_LL_orig:AA=S0=0&L2
modemcap entry micro_LL_ans:AA=S0=1&L2
line 73
no exec
modem InOut
modem autoconfigure type micro_LL_ans
transport input all
line 74
no exec
modem InOut
modem autoconfigure type micro_LL_orig
transport input all
Command Purpose
Step 1
Router(config)# modemcap entry
modem-type-name:AA=S0=0&L2
Sets the modemcap for leased-line operation for the
originating modem.
Step 2
Router(config)# modemcap entry
modem-type-name:AA=S0=1&L2
Sets the modemcap for leased-line operation for the
answering modem.