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Table Of Contents
Tested Deployments and Site Models
Multisite Distributed Deployment Options
Multisite Centralized, Clustering over the WAN with Unified SRST
Very Large Campus with Clustering over the WAN
Medium Business with Remote Locations
Small Campus Unified Communications Manager Site
Small Campus SIP Unified Communications Manager Express Site
Small Campus H.323 Unified Communications Manager Express Site
Cisco Unified CallManager Release 5.1(1) Interoperability Site
Cisco CallManager Release 4.2(3) Interoperability Site
Europe and Emerging Markets Site Models
Large Multisite Centralized with Unified SRST
Cisco Unified CallManager Interoperability Site (EUEM)
Non-Cisco Unified Communications Manager Interoperability Site (EUEM)
Tested Deployments and Site Models
Cisco Unified Communications Release 6.0(1) testing for IP telephony was designed to test the hardware and software components that work together in a multisite distributed IP telephony deployment.
For this testing, the following site models were created. Each site model was designed to test a specific set of features and interactions. The site models can be used in various combinations to create different versions of a multisite distributed deployment model.
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North America site models:
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This topic describes each site model.
For additional guidelines, recommendations, and best practices for implementing enterprise networking solutions, refer to the Cisco Solution Reference Network Design (SRND) guides and related documents, which are available at this URL:
For a list of the release versions of the components used in the site models, see System Release Notes for IP Telephony: Cisco Unified Communications System, Release 6.0(1).
This topic includes the following sections:
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Purpose of Solution Tests
An efficient, effective, and reliable IP telephony solution requires many interrelated hardware and software components. The site models that are described in this manual provide you with models and guidance as you implement an IP telephony system for your organization. Cisco has selected, installed, configured, and tested hardware and software designed to work together seamlessly and to provide a complete and optimized IP telephony solution.
Each site model addresses some or all of the following issues:
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Multisite Distributed Deployment Options
The site models within each test group (North America and EUEM) can be implemented in various combinations to create deployment models to meet the needs of a wide range or organizations.
Figure 1 shows the multisite distributed deployment that was tested for Cisco Unified Communications Release 6.0(1) testing for North America IP telephony.
For more detailed information about the sites used in this deployment, see the North America Site Models.
Figure 1 Multisite Distributed Deployment for North America IP Telephony
Figure 2 shows the multisite distributed deployment that was tested for Cisco Unified Communications Release 6.0(1) testing for EUEM IP telephony. For more detailed information about the sites used in this deployment, see the Europe and Emerging Markets Site Models.
Figure 2 Multisite Distributed Deployment for EUEM IP Telephony
North America Site Models
Nine site models were created and tested for Cisco Unified Communications Release 6.0(1) testing for North America IP telephony. Each site model tested specific hardware and software components, features, functions, protocols, and related items.
A site model includes one or more sites. Each site has a three-letter name (for example, SFO, ORD, and SJC). Examples throughout this manual refer to these site names.
The following sections describe each site model in detail. Each section includes an explanation of the design characteristics of the site model, and includes a table that lists the hardware and software components used in the model. The tables contain the following information for each component:
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Table 1 lists the site models and references to sections that provide detailed information.
Table 1 North America Site Models
Multisite Centralized, Clustering over the WAN with Unified SRST
San Francisco (SFO), Chicago (ORD)
San Jose (SJC), Rockford (RFD)
Dallas (DFW)
Abilene (ABI)
Kalamazoo (AZO)
Roxboro (RXB)
Small Campus SIP Unified Communications Manager Express Site
Atlanta (ATL)
Small Campus H.323 Unified Communications Manager Express Site
Toronto (YYZ)
Cisco Unified CallManager Release 5.1(1) Interoperability Site
Raleigh (RDU)
New York (NYC)
San Jose (SJC)
Multisite Centralized, Clustering over the WAN with Unified SRST
The Multisite Centralized, Clustering over the WAN with Unified SRST site model represents a very large financial company deployment in which two sites, San Francisco (SFO) and Chicago (ORD), are used to cluster Cisco Unified Communications Manager over an IP WAN. In this model, half of the cluster resides in SFO and the other half in ORD. These sites provide centralized call processing to remote Cisco Unified Survivable Remote Site Telephony (Unified SRST) sites. Communications with remote sites takes place over the IP WAN.
If either the central site or the IP WAN goes down, remote sites can continue to have service through Unified SRST) running on Cisco IOS gateways. In addition, remote sites can place calls over the PSTN if the IP WAN becomes temporarily oversubscribed.
SFO and ORD sites represent geographically redundant data centers and are the hub sites for remote Unified SRST sites. Unified SRST sites include H.323 and MGCP 26xx, 28xx, 37xx, 38xx and 72xx gateways. The WAN consists of T1 frame relay links.
The tested Multisite Centralized site model has the following design characteristics:
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Figure 3 provides an overview of the Multisite Centralized, Clustering over the WAN with Unified SRST site model.
Figure 3 Multisite Centralized, Clustering over the WAN with Unified SRST Site Model
Table 2 lists the hardware and software components used in the Multisite Centralized, Clustering over the WAN with Unified SRST site model.
Very Large Campus with Clustering over the WAN
The Very Large Campus with Clustering over the WAN site model represents a very large campus in which two sites, San Jose (SJC) and Rockford (RFD), are used to cluster Cisco Unified Communications Manager over an IP WAN. This site model also includes the Honolulu 1 (HNL1) and Honolulu 2 HNL2 sites, which provide Unified SRST capabilities and which are managed by the Cisco Unified Communications Manager cluster.
The Cisco Unified Communications Manager cluster in this site model consists of the following:
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This deployment model has the following characteristics:
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Figure 4 shows the topology of the Very Large Campus with Clustering over the WAN site model.
Figure 4 Very Large Campus with Clustering over the WAN Site Model
Table 3 lists the hardware and software components used in the Very Large Campus with Clustering over the WAN site model.
Large SIP Site
The Large SIP Site consists of one site called Dallas (DFW). This site includes a Cisco Unified Communications Manager cluster that includes the following:
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The Large SIP Site model also include Cisco Unified Presence, Unified SRST for SIP, Cisco Unity Connection for voice messaging, and Cisco Unified MeetingPlace Express for audio conferencing.
WAN connectivity is provided by a Cisco 2691 router and two SIP gateways provide connectivity to PSTN network. This site has 10,000 SIP endpoints.
Figure 5 shows the topology of the Large SIP Site model.
Figure 5 Large SIP Site Topology
Table 4 lists the hardware and software components used in the Large SIP Site site model.
Medium Campus Site
The Medium Site model for North America consist of one site called Abilene (ABI). This site includes a Cisco Unified Communications Manager cluster that includes the following:
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The Medium Site model supports 1,000 phones. Figure 6 shows the topology of the Medium Site model.
Figure 6 Medium Campus Site Topology
Table 5 lists the hardware and software components used in the Medium Site model.
Medium Business with Remote Locations
The Medium Business with Remote Locations site model consists of six sites collectively refered to as Kalamazoo (AZO). This site model includes one main site with a Unified Communications Manager Business Edition (Unified CMBE) and five remote sites that are configured to register with Unified CMBE but fail over to local Unified SRST routers.
The Medium Business with Remote Locations site model supports 500 phones.
Figure 6 shows the topology of the Medium Site model.
Figure 7 Medium Business with Remote Locations Site Topology
Table 5 lists the hardware and software components used in the Medium Business with Remote Locations site model.
Small Campus Unified Communications Manager Site
The Small Site model for North America consists of one site called Roxboro (RXB). This site includes a Cisco Unified Communications Manager cluster that includes the following:
RXB represents a small RoHS compliant CCM 5.1 site in the IPT model. The site will contain 500 IP phones; H.323, MGCP and SIP GWs; MeetingPlace Express; Unity Connection; Berbee; Cisco Emergency Response; Cisco Mobility Manager; IPCC Express.
WAN connectivity is provided by a Cisco 2691 router and two SIP gateways provide connectivity to PSTN network. This site has 10,000 SIP endpoints.
The Small Site model supports 500 phones.
Figure 8 shows the topology of the Small Site model.
Figure 8 Small Site Topology
Table 7 lists the hardware and software components used in the Small Site model.
Small Campus SIP Unified Communications Manager Express Site
The Small-Campus SIP Site model consists of one site called Atlanta (ATL). This site includes:
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This site communicates with Cisco Unified Communications Manager clusters in other sites using a SIP trunk through an IP-to-IP gateway.
Figure 9 shows the topology of the Small-Campus SIP Site model.
Figure 9 Small -Campus SIP Site Topology
Table 8 lists the hardware and software components used in the Small-Campus SIP Site model.
Small Campus H.323 Unified Communications Manager Express Site
The Small-Campus H.323 Unified Communications Manager Express Site model consists of one site called Toronto (YYZ). This site includes:
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The Unified Communications Manager Express routers connect to a Unified MeetingPlace server via the H.323 gatekeeper.
This site has four hundred SCCP endpoints. An IP-to-IP gateway between YYZ and ATL provides connectivity between Unified Communications Manager Express routers and Unified Communications Manager clusters. The H.323 gatekeeper in YYZ provides connectivity between Unified Communications Manager Express routers and Unified Unified Communications Manager clusters.
Figure 10 shows the topology of the Small-Campus H.323 Unified Communications Manager Express Site model.
Figure 10 Small-Campus H.323 Unified Communications Manager Express Site Topology
Table 9 lists the hardware and software components used in the Small-Campus H.323 Unified Communications Manager Express Site model.
Cisco Unified CallManager Release 5.1(1) Interoperability Site
The Medium Site model for North America consist of one site called Raleigh (RDU). This site includes a Cisco Unified CallManager cluster that includes the following:
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The Medium Site model supports 1,000 phones. Figure 6 shows the topology of the Medium Site model.
Figure 11 Medium Site Topology
Table 5 lists the hardware and software components used in the Medium Site model.
Cisco CallManager Release 4.2(3) Interoperability Site
The Cisco Unified CallManager Interoperability Site model for North America consists of one site called New York (NYC). This site was designed to test interoperability between Cisco Unified CallManager 4.2(3) and Cisco Unified Communications Manager 6.0(1).
This site includes a Cisco Unified CallManager cluster that includes the following:
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This site also has one Cisco Emergency Responder server, one VG224 with 24 analog phones, sic SCCP phones, and 600 simulated SCCP phones.
Figure 12 shows the topology of the Cisco Unified CallManager Release 5.1(1) Interoperability Site model.
Figure 12 Cisco Unified CallManager Release 5.1(1) Interoperability Site Topology
Table 11 lists the hardware and software components used in the Cisco Unified CallManager Release 5.1(1) Interoperability Site.
Centralized TFTP Cluster Site
The Centralized TFTP Cluster Site model consists of a site called San Jose (SJC). This site was used to test centralized TFTP servers.
Table 12 lists the hardware and software components used in the Centralized TFRP Cluster Site model.
Europe and Emerging Markets Site Models
Six site models were created and tested for Cisco Unified Communications Release 6.0(1) testing for Europe and Emerging Markets (EUEM) IP telephony. Each site model tested specific hardware and software components, features, functions, protocols, and related items.
A site model includes a site with a three-letter name (for example, CDG, GVA, and MAD). Examples throughout this manual refer to these site names.
The following sections describe each site model in detail. Each section includes an explanation of the design characteristics of the site model, and includes a table that lists the hardware and software components used in the model. The tables contain the following information for each component:
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Table 13 lists the site models and references to sections that provide detailed information.
Table 13 EUEM Site Models
Paris (CDG)
Geneva (GVA)
Madrid (MAD)
London (LGW)
Non-Cisco Unified Communications Manager Interoperability Site (EUEM)
Reykjavik (RKV)
Warsaw (WAW)
For an illustration showing how these site models were deployed for testing, see Figure 2.
Large Multisite Centralized with Unified SRST
The Large Multisite Centralized with Unified SRST site model consists of one site called Paris (CDG). This site model represents an international deployment with up to 100 remote sites deployed across various countries. In includes Cisco Unity, Cisco Unified MeetingPlace Express, and third-party components. Cisco Unified Communications Manager uses QSIG, H.323, and SIP to interoperate between sites. Remote sites are interconnected through the WAN and all are RSVP-enabled to the central site.
In this model, a Cisco Unified Communications Manager cluster serves 6000 phone in local and remote locations, with all endpoints and gateways fully encrypted (RTP and signalling). PBXs that support the QSIG ISO variant connect to this cluster through direct QSIG links. The Cluster connects to the rest of the network through legacy ATM/frame relay and MPLS WAN networks.
Calls between the CDG site, the LGW site, and the MAD site are provided by H.323 intercluster trunks. Cisco Unity (with failover capabilities) provides voice messaging. Lotus Domino is used for unified messaging. PBX users access voice messaging features through the QSIG trunks to Cisco Unified Communications Manager.
Access to the PSTN for normal off-net calls is provided by ten E1 ETSI PRI links to the PSTN. Remote sites have either centralized breakout to the PSTN or local PSTN breakout using E1 PRI, BRI, or FXO connections. PSTN access is controlled by Cisco Unified Communications Manager using MGCP, H.323, or SIP. Unified SRST is used in each remote site.
This site model includes two Cisco Unified MeetingPlace Express servers. One is connects to Cisco Unified Communications Manager through a direct H.323 link. The other connect to Cisco Unified Communications Manager through an H.323 gatekeeper. Both Cisco Unified MeetingPlace Express servers can receive and make calls from local and remote sites.
Access to the SIP network is provided through a SIP trunk to a remote Cisco SIP Proxy Server (CSPS). Access to third-party services such as operator console, billing, and voice recording, if available, is provided locally. Some of sites will also have video endpoints and Cisco Unified Videoconferencing Gateways, and remote QSIG PBXs.
The Large Multisite Centralized with Unified SRST site model has these design characteristics:
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Figure 13 shows the topology of the Large Multisite Centralized with Unified SRST Site model.
Figure 13 Large Multisite Centralized with Unified SRST Site Topology
Table 14 lists the hardware and software components used in the Multisite Centralized, Clustering over the WAN with Unified SRST site model.
Table 14 Large Multisite Centralized with Unified SRST Site Model Components
Access Catalyst switch
WS-C6509-E
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Analog gateway
Cisco VG248
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Cisco ATA 188 Analog Telephone Adaptor
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Cisco Unified Communications Manager server
Cisco MCS 7835-H1-IPC1 Unified Communications Manager Appliance
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Cisco Unified SRST routers
Cisco 2801
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Cisco 2811
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Cisco 2851
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Cisco 3825
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Cisco Unified Contact Center Express
Cisco MCS 7835-H2 Unified Communications Manager Appliance
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Cisco Unified IP Phone
Cisco Unified IP Phone 7971G-GE
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Cisco Unified IP Phone 7970G
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Cisco Unified IP Phone 7960G
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Cisco Unified IP Phone 7940G
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Cisco Unified IP Phone 7912G
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Cisco Unified IP Phone 7905G
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Cisco Unified IP Phone 7902G
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Cisco Unified IP Phone 7936
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Cisco Unified IP Phone 7961G/7961G-GE
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Cisco Unified IP Phone 7941G/7941G-GE
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Cisco Unified IP Phone 7911G
10
Cisco Unified MeetingPlace Express
MCS-Cisco MCS 7845-H1-IPC1 Unified Communications Manager Appliance
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Cisco Unity Server
Cisco MCS 7835-H1-ECS1 Unified Communications Manager Appliance
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CMM analog module
WS-SVC-CMM-24FXS
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CMM conference module
WS-SVC-CMM-ACT
3
Core Catalyst chassis
WS-C6506-E
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E1 gateway card
WS-X6608-E1
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E1 interface module
WS-SVC-CMM-6E1
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Expansion module for Cisco Unified IP Phone
Cisco Unified IP Phone Expansion Module 7914
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Gateway
Cisco 1760-V
2
Cisco 2611XM
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Cisco 2621XM
1
Cisco 2651XM
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Cisco 2691
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Cisco 2801
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Cisco 2811
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Cisco 2821
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Cisco 2851
2
Cisco 3725
1
Cisco 3745
1
Cisco 3825
2
Cisco 3845
2
Gateway Card
WS-SVC-CMM
3
Inline power IU switch
WS-C3550-24PWR-SMI
3
WS-C3750-24PS-S
3
WS-C3750-48PS-S
2
Router
Cisco 7206-VXR
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Video conferencing
Cisco Unified Videoconferencing MCU 3511 EMP
2
Video endpoint
Cisco Unified Video Advantage
4
Cisco 7985
5
Video H.320 Gateway BRI
IPVC-3521-GW-4B
2
Video H.320 Gateway PRI
IPVC-3526-GW-1P
2
Video MCU and Gateway
IPVC-3544-CHAS
1
Wireless phone
Cisco Unified Wireless IP Phone 7920
5
1 Divided into two Unified Communications Manager clusters: one main cluster consisting of 11 servers and a second smaller cluster of two servers supporting the Unified Contact Center Express server and agent phones.
Medium Site (EUEM)
The Medium Site model consists of one site called Geneva (GVA). In this model, a Cisco Unified Communications Manager cluster serves 2000 phones. The Cisco Unified Communications Manager cluster connects to the rest of the network through legacy ATM / Frame Relay and MPLS WAN networks.
A local Cisco Unity Connection provides voice messaging services for local PBX and Cisco Unified Communications Manager users. Access to the PSTN for normal off-net calls is provided by five E1 RTSI PRI links to the PSTN. Access to other sites and to services such as Cisco Unified MeetingPlace Express is provided by H.323 gatekeeper controlled trunks and an IP-to-IP gateway. Access to the SIP network is through a SIP trunk to a remotely located CSPS. Third-party operator consoles are provided on Cisco Unified Communications Manager to serve local phones and to provide backup to the operator console in the CDG site.
The Medium Site model has these design characteristics:
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Figure 14 shows the topology of the EUEM Medium Site model.
Figure 14 EUEM Medium Site Topology
Table 15 lists the hardware and software components used in the Medium Site model.
Small Site (EUEM)
The Small Site model for Europe and Emerging Markets consists of one site called Madrid (MAD). In this model, a Cisco Unified Communications Manager cluster serves 750 phones in a single campus. A PBX that supports the ISO QSIG variant connects to this cluster through direct QSIG links.
Cisco Unity Connection connects to the cluster through the QSIG-enabled intercloster trunk via the LGW site and provide voice messaging functions to PBX users and to Cisco Unified Communications Manager users. PBX users have access to Cisco Unified Communications Manager through a QSIG trunk.
The Cluster connects to the rest of the network through legacy ATM/frame relay and MPLS WAN networks. Calls between this site and other sites in the network are made through the WAN with two Annex M1 intercluster trunks to the CDG and LGW sites.
Access to the PSTN as a backup route to other sites and for normal off-net calls is provided by two E1 ETSI PRI links to the PSTN. Access to services such as Cisco Unified MeetingPlace Express, and operator consoles also is provided through the Annex M1 intercluster trunk to the Large Multisite Centralized with Unified SRST site.
The Small Site model has these design characteristics:
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Figure 15 shows the topology of the EUEM Small Site model.
Figure 15 EUEM Small Site Topology
Table 16 lists the hardware and software components used in the EUEM Small Site model.
Cisco Unified CallManager Interoperability Site (EUEM)
The Cisco Unified CallManager Interoperability Site model for EUEM consists of one site called London (LGW). In this model, a Cisco Unified CallManager cluster serves 2,000 phones in a single campus. A PBX that supports the ISO QSIG variant connects to this cluster through direct QSIG links.
The Cluster connects to the rest of the network through legacy ATM/frame relay and MPLS WAN networks. Calls between this site and other sites in the network are made through the WAN with two Annex M1 intercluster trunks to the CDG and MAD sites.
Some PBX and Cisco Unified CallManager users have voice messaging services provided by Cisco Unity Connection, which is connected to the cluster through an SCCP link. The PBX user access voice messages through QSIG trunks to Cisco Unified CallManager.
Other PBX and CCM users have access to Unified messaging with Unity and Domino located in the CDG Site via the Annex M1 Inter Cluster Trunk. MWI events and message store and retrieval for both the connected PBX and the CCM users is all passed Annex M1 between the sites.
Access to the PSTN as a backup route to other sites and for normal off-net calls is provided by 5 E1 ETSI PRI links to the PSTN. Access to Cisco Unified MeetingPlace Express, the Cisco Unified CallManager network, and any non-directly connected clusters is provide through remotely located H.323 gatekeepers. Access to the SIP network is provided through a SIP trunk to a remotely located CSPS. Operator console services are provided in the CDG site through the Annex M1 intercluster trunk.
The Cisco Unified CallManager Interoperability Site model has these design characteristics:
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Figure 16 shows the topology of the EUEM Cisco Unified CallManager Interoperability site model.
Figure 16 EUEM Cisco Unified CallManager Interoperability Site Topology
Table 17 lists the hardware and software components used in the EUEM Cisco Unified CallManager Interoperability Site model.
Non-Cisco Unified Communications Manager Interoperability Site (EUEM)
The Non-Cisco Unified Communications Manager Interoperability Site model for EUEM consists of one site called Reykjavik (RKV). This site model is designed to test interoperability of all components in the other models with CSPS controlled endpoints.
The Non-Cisco Unified Communications Manager Interoperability Site model includes a Cisco SIP Proxy Server (CSPS), and SIP phones and PSTN gateways connected to the CSPS. Each Cisco Unified Communications Manager cluster also has connectivity to the CSPS for interoperability.
Figure 17 shows the topology of the Non-Cisco Unified Communications Manager Interoperability Site model.
Figure 17 Non-Cisco Unified Communications Manager Interoperability Site Topology
Table 18 lists the hardware and software components used in the Non-Cisco Unified Communications Manager Interoperability Site model.
Small Campus Multisite H.323
The Small Campus Multisite H.323 site model consists of one site called Warsaw (WAW). This model includes 13 Cisco Unified Communications Manager Express sites connected to each other and to the rest of the network through H.323 gatekeepers. Each Cisco Unified Communications Manager cluster uses an IP-to-IP gateway and MTP to communicate with the Cisco Unified Communications Manager Express systems in this site, and with the Cisco Unified MeetingPlace Express system located in the CDG site.
Each Cisco Unified Communications Manager Express system has either Cisco Unity Express installed locally installed, or will access Cisco Unity Connection through an MWI relay gateway that is located in the GVA site.
The Small Campus Multisite H.323 model has these design characteristics:
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Figure 18 shows the topology of the Small Campus Multisite H.323 site model.
Figure 18 Small Campus Multisite H.323 Site Topology
Table 19 lists the hardware and software components used in the Small Campus Multisite H.323 model.
