Cisco 1700 series, Manual

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Product Description
Supported Platforms
and Minimum Cisco
IOS Versions Comments
Analog and ISDN Basic Rate Voice Network Modules
continued
EVM-HD-8FXS/DID
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
office [FXO]) and digital
(Basic Rate Interface [BRI])
call-capacity requirements .
Components: Baseboard
with eight ports that can be
configured 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 .
Modular Router Solutions
Voice and Fax Integration
Extension Voice Module
(EVM) slot only:
2821–12 .3(8)T4
2851–12 .3(8)T4
Any Network Module Slot:
3825 (1 per router)–
12 .3(11)T
3845 (1 or 2 per router)–
12 .3(11)T
Requires a Cisco IOS voice
feature set .
EM-4BRI-NT/TE
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 .
Modular Router Solutions
Voice and Fax Integration
3800 Series–12 .3(11)T
2851–12 .3(8)T4
2821–12 .3(8)T4 Requires a Cisco high-
density analog and digital
extension module
(EVM-HD-8FXS/DID) .
Requires voice feature set .
Cisco Network Modules
NM-HDA-4FXS
High-density Analog Voice/
Fax Network Module with
4 FXS
This base board is always
required for any configu-
ration of NM-HDA . It comes
with four built-in FXS ports .
Onboard DSP resources
can service eight voice
calls using high-complexity
codecs: G .711 a/u; G .726
at 32k, 24k and 16k; G .728;
G .729, A, B, AB; G .723 .1 at
5 .3k and 6 .3k; clear channel
codec, fax relay . Also
supports 16 voice calls
using medium-complexity
codecs: G .711 a/u, G .726 at
32k, 24k, and 16k; G .729A
and AB; clear channel
codec, fax relay . Supports
two expansion modules
and one DSP module .
Modular Router Solutions
Voice and Fax Integration
3800 Series–12 .3(11)T
2811, 2821, and 2851–
12 .3(8)T4
Prior to Cisco IOS 12 .3
Mainline, requires a Cisco
IOS “Plus” feature set .
12 .3 Mainline and forward
supported in IP Voice
feature set .
No reliance on other
network modules, WICs,
voice interface cards,
or advanced integration
modules .
Product Description
Supported Platforms
and Minimum Cisco
IOS Versions Comments
Analog and ISDN Basic Rate Voice Network Modules
continued
NM-HD-2VE
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
traffic to be routed over
data networks . The user-
configurable 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 G .711 digital T1/E1
voice channels . Connects
to standard telephony
equipment such as PBXs,
key systems, phones, and
fax machines .
Modular Router Solutions
Voice and Fax Integration
3800 Series–12 .3(11)T
2811, 2821, and 2851–
12 .3(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