
Notes
164 165
Cisco Voice Network Modules
Product
Description
Supported Platforms
and Minimum Cisco
IOS Versions
Comments
Analog and ISDN Basic Rate Voice Network Modules
NM-HD-1V
One-slot IP Communications
Voice/Fax Network Module
Provides a one-slot
voice/fax network module
with an integrated digital
signal processor (DSP),
enabling voice and
fax trafc to be routed
over data networks
The user-congurable
expansion slot
accommodates a Cisco
voice interface card, which
allows four analog ports or
two BRI ports to standard
telephony equipment such
as PBXs, key systems,
phones, and fax machines
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and
28 51–12 3 (8)T4
Requires voice interface
card and voice feature set
NM-HD-2V
Two-slot IP Communications
Voice/Fax Network Module
Provides a two-slot
voice/fax network module
with an integrated digital
signal processor (DSP),
enabling voice and
fax trafc to be routed
over data networks
The user-congurable
expansion slot
accommodates two Cisco
voice interface cards,
which allows up to eight
analog ports or four BRI
ports to standard telephony
equipment such as PBXs,
key systems, phones, and
fax machines
Modular Router Solutions
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and
28 51–12 3 (8)T4
Requires voice interface
card and voice feature set
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