Specifications

Configuring and Managing Integrated Modems
Managing Modems
DC-85
Cisco IOS Dial Technologies Configuration Guide
Figure 19 Modem Pooling Using Physical Partitioning
Physical partitioning can also be used to set up an access server for bidirectional dial access. (See
Figure 20.)
Figure 20 shows one Cisco AS5300 access server loaded with 96 MICA modems and configured with 2
modem pools. One modem pool has 84 modems and collects DNIS. This pool is shared by 400
salespeople who remotely download e-mail from headquarters. The other modem pool contains 12
fax-capable modems and does not collect DNIS. This pool is shared by 40 employees using PCs on a
LAN. Each time an outbound call is initiated by a PC, a modem on the Cisco AS5300 access server is
seized and used to fax out or dial out. Not configuring DNIS support in the fax-out modem pool protects
the pool from being used by the calls coming in from the field. Regardless of how many salespeople are
dialing in or which telephone number they use, the fax-out and dial-out modem pool will always be
reserved for the PCs connected to the LAN.
Figure 20 Modem Pooling Used for Bidirectional Dialing
Creating a Physical Partition
The following task creates one V.34 modem pool and one 56K modem pool on a Cisco AS5200. Each
modem pool is configured with its own DNIS. Depending on which DNIS the remote clients dial, they
connect to a 56K MICA modem or a V.34 Microcom modem.
13053
56K modems
V.34 modems
Fax-capable modems
POS modems
24
24
24
24
555-1111
Modems
in Pool
Assigned
DNIS Number
555-2222
555-3333
555-4444
One Cisco AS5300
loaded with 96 modems
84 field salespeople
dialing in with
56K modems
Cisco
AS5300
Four PRI
or CT1 lines
13051
Dial-in calls
• 84 V.90 modems
in modem pool
• DNIS is collected
40 PCs dialing out
and faxing out with
Cisco DialOut Utility
software
Dial out/fax out calls
• 12 modems in default
modem pool
• DNIS is not collected.
Dial in
Fax out
Dial out
Headquarters LAN
E-mail server
PSTN