
1-4 Chapter 1: Routing
Branch Routers
Cisco 3900 Series Integrated Services Routers (ISRs) are designed
to power the next phase of branch-office evolution, providing rich-
media collaboration and virtualization to the branch office while
reducing operating costs.
Cisco 3900 Series Integrated Services Routers build on 25 years of
Cisco innovation and product leadership. The new Cisco Integrated Services Routers Generation 2 (ISR G2)
platforms are architected to enable the next phase of branch-office evolution, providing rich-media
collaboration and virtualization to the branch office while maximizing operational cost savings. The new routers
support new high-capacity digital signal processors (DSPs) known as PVDM3 for higher density voice services
plus basic video-conferencing capabilities, high-powered service modules with improved availability,
multicore CPUs, Gigabit Ethernet switching with Cisco Enhanced Power over Ethernet (ePoE), and new energy
visibility and control capabilities while enhancing overall system performance.
Additionally, a new Cisco IOS Software Universal image and Cisco Services Ready Engine (SRE) module
enable you to decouple the deployment of hardware and software, providing a flexible technology foundation
Onboard
Hardware VPN
Acceleration
(DES, 3DES, AES)
YesYesYesYesYesYesYesYesYesYes
Intrusion
prevention
YesYesYesYesYesYesYesYesYesYes
Content filtering
YesYesYesYesYesYesYesYesYesYes
ScanSafe Web
Security
YesYesYesYesYesYesYesYesYesYes
Unified
Communication
Enabled via Unified Communications License for Universal IOS Image. CCME/SRST support
through separate feature licenses
Local
conferencing
YesYesYesYesYesYesYesYes— —
Voice and Video
DSP support
PVDM3
and
PVDM2
PVDM3
and
PVDM2
PVDM3
and
PVDM2
PVDM3
and
PVDM2
PVDM3
and
PVDM2
PVDM3
and
PVDM2
PVDM3
and
PVDM2
PVDM3
and
PVDM2
——
Survivable
Remote Site
Telep h o ny ( S R ST )
Up to
1500
Up to
1350
Up to
1200
Up to
730
Up to
250
Up to
100
Up to 50 Up to 35 — —
Cisco Unified
Communications
Manager Express
Up to
450
Up to
400
Up to
350
3
Up to
250
3
Up to
150
Up to
100
Up to 50 Up to 35 — —
Cisco Unity™
Express (network
module [NM],
service module
[SM], or ISM)
32 ports;
300
mail-
boxes
32 ports;
300
mail-
boxes
32 ports;
300
mail-
boxes
32 ports;
300
mail-
boxes
32 ports;
300
mail-
boxes
32 ports;
300
mail-
boxes
32 ports;
300
mail-
boxes
10 ports;
100
mail-
boxes
——
Cisco Unified
Border Element
sessions
2500 2100 950 800 600 400 200 100 — —
Cisco Unified SIP
Proxy
200 CPS
(with
SRE-700
and
SRE-
900)
100 CPS
(with
SRE-700
and
SRE-
900)
200 CPS
(with
SRE-700
and
SRE-
900)
100 CPS
(with
SRE-700
and
SRE-
900)
100 CPS
(with
SRE-700
and
SRE-
900)
10 CPS
(with
SRE-700
and
SRE-
900)
10 CPS
(with
SRE-700
and
SRE-
900)
———
Digital voice
support
Up to
840
Up to
600
Up to
900
Up to
720
Up to
400
Up to
240
Up to
150
Up to
100
——
Maximum voice
support for
analog and Basic
Rate Interface
(BRI)
FXS: 108
FXO: 60
BRI: 38
FXS: 60
FXO: 36
BRI: 22
FXS: 112
FXO: 64
BRI: 40
FXS: 64
FXO: 40
BRI: 24
FXS:40
FXO: 28
BRI: 16
FXS:40
FXO: 28
BRI: 16
FXS: 40
FXO: 28
BRI: 16
FXS: 16
FXO: 16
BRI: 8
——
Online model comparison chart: http://www.cisco.com/en/US/products/ps10536/prod_series_comparison.html
1. Up to 2 GB available for use; upgrade to 4 GB available in future.
2. LAN Switching counts for the Cisco 2911 through Cisco 3945 and Cisco 3945E routers based on latest generation of
switch service module.
3. Scales to documented phone support in 15.0.1 build.
Cisco 3900 Series Integrated Services Routers
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