Datasheet

Data Sheet
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Cisco Survivable Remote Site Telephony (SRST) solution or distributed call processing using Cisco Call Manager
Express (CME). The architecture is highly scalable with the ability to connect up to 12 T1/E1s trunks, 52 foreign-
exchange-station (FXS) ports, or 36 foreign-exchange-office (FXO) ports.
Table 4. IP Telephony Support—Features and Benefits
Feature Benefit
IP Phone Support
●
Optional support for Cisco in-line power distribution to Ethernet switch network modules and
HWICs can be used to power Cisco IP phones.
EVM Module Slots
●
Extension Voice Module Slots, available only on the Cisco 2821 and Cisco 2851, provide support
for the Cisco High-Density Analog and Digital Extension Module for Voice and Fax, providing
support for up to 24 total voice and fax sessions without consuming a Network Module Slot.
PVDM (DSP) Slots on Motherboard
●
DSP (PVDM2) modules deliver support for analog and digital voice, conferencing, transcoding,
and secure Real-Time Transport Protocol (RTP) applications.
Integrated Call Processing
●
Cisco CME is an optional solution embedded in Cisco IOS Software that provides call processing
for Cisco IP phones. Cisco CME delivers telephony features similar to those that are commonly
used by business users to meet the requirements of the small to medium-sized offices.
Integrated Voice Mail
●
Support for up to a 250 mailboxes using the Cisco Unity
®
Express voice messaging system is
possible with the integration of an optional voice-mail AIM or network module.
Broad Range of Voice Interfaces
●
Interfaces for public switched telephone network (PSTN), private branch exchange (PBX), and key
system connections include FXS; FXO; analog direct inward dialing (DID); ear and mouth (E&M);
Centralized Automated Message Accounting (CAMA); ISDN Basic Rate Interface (BRI); and T1,
E1, and J1 with ISDN Primary Rate Interface (PRI); QSIG; E1 R2; and several additional channel-
associated-signaling (CAS) signaling schemes.
Survivable Remote Site Telephony (SRST)
●
Branch offices can take advantage of centralized call control while cost-effectively providing local
branch backup using SRST redundancy for IP telephony.
Wireless Support—Features and Benefits
The Cisco 2800 Series can provide a complete wireless solution for branch offices, small/medium sized businesses,
and Wi-Fi hotspots. Wireless services enable greater mobility for employees, partners, and customers, resulting in
increased productivity.
Table 5. Wireless Support—Features and Benefits
Feature Benefit
WLAN Connectivity
●
The 802.11b/g or 802.11a/b/g HWIC access point interface card can be used to provide integrated
WLAN connectivity to mobile clients at sites requiring a single access point, resulting in mobility
and enhanced productivity for users.
●
Dual RP-TNC connectors enable diversity and allow for optimum coverage through the use of
external antennas.
Wireless Infrastructure Services
●
Telephony support for wired and WLAN IP phones is delivered by Cisco CallManager Express
(CCME) or by Survivable Remote Site Telephony (SRST) with Cisco CallManager. Cordless
WLAN IP phones allow users to be mobile and more productive.
●
Integrated switch modules with Power over Ethernet (POE) enable support for Cisco Aironet
access points (for larger sites) as well as wired IP phones.
●
Mobility for clients from WLAN to cellular networks is enabled by Mobile IP home agent support.
●
IEEE 802.1x local authentication using LEAP provides enhanced reliability through survivable
authentication for WLAN clients during WAN failures.
●
Customizable guest access is enabled with the service selection gateway features, along with the
Subscriber Edge Services Manager.
Land Mobile Radio Over IP
●
LMR over IP support allows radio users (e.g., security personnel, maintenance personnel, police
officers, etc.) to communicate via IP with phone and PC users, delivering improved
communications and productivity.
Wi-Fi Hotspot Services
●
The access zone router and service selection gateway services features can be used to deploy
secure public WLAN access services with an integrated HWIC-AP for small sites or with Cisco
Aironet access points for larger sites. Wi-Fi hotspot services can be offered for additional revenue
for public locations (e.g., restaurants, hotels, airports, etc.) or a value-added service for customer
satisfaction.