Cisco 2911 Configuration Guide

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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Unified Communications on Cisco Integrated Services Routers
Call Control Protocols
Cisco Unified SIP Proxy (CUSP)
The Cisco Unified SIP Proxy (CUSP) is a high-performance, highly available Session Initiation Protocol
(SIP) server for centralized routing and SIP signaling normalization. By forwarding requests between
call-control domains, the Cisco Unified SIP Proxy provides the means for routing sessions within
enterprise and service provider networks.
To configure CUSP features, see Configuring Cisco Unified SIP Proxy Version 1.1.3 for an Enterprise
Network at:
http://www.cisco.com/en/US/docs/voice_ip_comm/cusp/rel1_1_3/configuration/guide/cuspgd113.html
Gatekeeper
An H.323 Gatekeeper is an optional node in an H.323 network that manages endpoints (such as H.323
terminals, gateways, and Multipoint Control Units (MCUs), as well as Cisco Unified Communications
Manager Express and Cisco Unified Communications Manager clusters). An H.323 Gatekeeper provides
these endpoints with call routing and call admission control functions. The endpoints communicate with
the Gatekeeper using the H.323 Registration Admission Status (RAS) protocol.
The H.323 Gatekeeper is a special Cisco IOS software image that runs on the Cisco ISR platforms and
the AS5350XM and AS5400XM Universal Gateway platforms. The Cisco IOS H.323 Gatekeeper is an
application that acts as the point of control for a variety of voice and video components that can be
attached to an IP network such as IP telephony devices, IP-PSTN gateways, H.323 video conferencing
endpoints, and H.323 multipoint control units while facilitating buildout of large-scale multimedia
service networks.
To configure Gatekeeper features, see Configuring H.323 Gatekeepers and Proxies at:
http://www.cisco.com/en/US/docs/ios/12_3/vvf_c/cisco_ios_h323_configuration_guide
/old_archives_h323/5gkconf.html.
Call Control Protocols
The Cisco 3900 series and Cisco 2900 series ISRs support the following type of call control protocols:
• Trunk-side Protocols, page 172
• Line-side Protocols, page 173
Trunk-side Protocols
The Cisco 3900 series and Cisco 2900 series ISRs support the following trunk-side call control
protocols:
• Session Initiation Protocol (SIP), page 173
• Media Gateway Control Protocol (MGCP), page 173
• H.323, page 173

Cisco 2911 Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
USB version	2.0
RS-232 ports	1
Expansion slots	4 x EHWIC 2 x DSP 1 x ISM
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
Firewall security	Cisco IOS
Input current	2.2 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	50 W
Product color	Black
Rack capacity	2U
Operating altitude	0 - 4000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 80 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	5 - 85 %
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	304.8 mm
Width	438.2 mm
Height	88.9 mm
Weight	8200 g