Filter
Top Products
142
143
High-Density Analog and
Digital Extension Module
for Voice and Fax
With support for up to 24
total voice and fax sessions,
the Cisco High-Density
Extension Module is ideal for
networks with high analog
(foreign exchange station
[FXS], direct inward dialing
[DID], and foreign exchange
ofce [FXO]) and digital
(Basic Rate Interface [BRI])
call-capacity requirements
Components: Baseboard
with eight ports that can be
congured individually for
FXS or DID signaling Add up
to two expansion modules in
any combination to increase
voice and fax session
capacity: EM-HDA-8FXS,
EM-4BRI-NT/TE,
EM-HDA-6FXO, EM-HDA-
3FXS/4FXO Packet
voice DSP modules
(PVDM2s) are used in
combination with the Cisco
High-Density Extension
Module baseboard and
its expansion modules
PVDM2s are purchased
separately and installed in
the digital signal processor
(DSP) module slots located
inside the Cisco 2821, Cisco
2851, Cisco 3825, and Cisco
3845 Integrated Services
Routers
Voice and Fax Integration
Extension Voice Module
(EVM) slot only:
2821–123(8)T4
2851–123(8)T4
Any Network Module Slot:
3825 (1 per router)–
123(11)T
3845 (1 or 2 per router)–
123(11)T
Requires a Cisco IOS voice
feature set
Four-port Voice and Fax
Expansion Module
Adds support for BRI
(NT and TE) for use with
the Cisco High-Density
Extension Module (EVM-
HD-8FXS/DID) baseboard
This module allows
connection to an ISDN
S/T network by replicating
either the network side
or the terminal side This
module provides four
on-premises S/T BRI trunk
connections to the ISDN
PBX
Voice and Fax Integration
3800 Series–123(11)T
2851–123(8)T4
2821–123(8)T4
Requires a Cisco high-
density analog and digital
extension module
(EVM-HD-8FXS/DID)
Requires voice feature set
Cisco Network Modules
High-density Analog Voice/
Fax Network Module with
4 FXS
This base board is always
required for any congu-
ration of NM-HDA It comes
with four built-in FXS ports
Onboard DSP resources
can service eight voice
calls using high-complexity
codecs: G711 a/u; G726
at 32k, 24k and 16k; G728;
G729, A, B, AB; G7231 at
53k and 63k; clear channel
codec, fax relay Also
supports 16 voice calls
using medium-complexity
codecs: G711 a/u, G726 at
32k, 24k, and 16k; G729A
and AB; clear channel
codec, fax relay Supports
two expansion modules
and one DSP module
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and 2851–
123(8)T4
Prior to Cisco IOS 123
Mainline, requires a Cisco
IOS “Plus” feature set
123 Mainline and forward
supported in IP Voice
feature set
No reliance on other
network modules, WICs,
voice interface cards,
or advanced integration
modules
Two-slot IP Communications
Enhanced 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 accommodate the
addition of up to four Cisco
voice interface cards
or voice/WAN interface
cards The interface cards
allow up to eight analog
ports, four BRI ports, 24
medium complexity, or
48 G711 digital T1/E1
voice channels Connects
to standard telephony
equipment such as PBXs,
key systems, phones, and
fax machines
Voice and Fax Integration
3800 Series–123(11)T
2811, 2821, and 2851–
123(8)T4
Requires voice interface
card and voice feature set
The VWIC2-1MFT-G703
and VWIC2-2MFT-G703
are not supported on the
NM-HD-2VE
Cisco Network Modules