Cisco Cisco IP Contact Center Release 4.6.2 Dépliant
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Cisco Unified Contact Center Enterprise 7.5 SRND
Chapter 2 Deployment Models
IPT: Multi-Site with Distributed Call Processing
Figure 2-8
Multi-Site Deployment with Distributed Call Processing and Distributed Voice Gateways with Unified CVP
As with the previous models, many options are possible. The number and type of Unified ICM Servers,
Unified CM servers, and Unified CVP servers can vary. LAN/WAN infrastructure, voice gateways,
PSTN trunks, redundancy, and so forth, are also variable within this deployment model. Central
processing and gateways may be added for self-service, toll-free calls and support for smaller sites. In
addition, the use of a pre-routing PSTN Network Interface Controller (NIC) is also an option.
Unified CM servers, and Unified CVP servers can vary. LAN/WAN infrastructure, voice gateways,
PSTN trunks, redundancy, and so forth, are also variable within this deployment model. Central
processing and gateways may be added for self-service, toll-free calls and support for smaller sites. In
addition, the use of a pre-routing PSTN Network Interface Controller (NIC) is also an option.
Advantages
•
Unified CVP Servers can be located either centrally or remotely. Call treatment and queuing will
still be distributed, executing on the local gateway, regardless of Unified CVP server location.
Unified CVP is shown centrally located in
still be distributed, executing on the local gateway, regardless of Unified CVP server location.
Unified CVP is shown centrally located in
•
For information on the number of agents supported per PG and across the entire system, see the
chapter on
chapter on
•
All or most VoIP traffic can be contained within the LAN of each site, if desired. The QoS WAN
would be required for voice calls to be transferred across sites. Use of a PSTN transfer service (for
example, Takeback N Transfer) could eliminate that need. If desired, a small portion of calls arriving
at a particular site can be queued for agent resources at other sites to improve customer service
levels.
would be required for voice calls to be transferred across sites. Use of a PSTN transfer service (for
example, Takeback N Transfer) could eliminate that need. If desired, a small portion of calls arriving
at a particular site can be queued for agent resources at other sites to improve customer service
levels.
•
Unified ICM pre-routing can be used to load-balance calls and route them to the best site to reduce
WAN usage for VoIP traffic.
WAN usage for VoIP traffic.
•
Failure at any one site has no impact on operations at another site.
•
Each site can be sized according to the requirements for that site.
•
The Unified ICM Central Controller provides centralized management for configuration of routing
for all calls within the enterprise.
for all calls within the enterprise.
Signaling/CTI
IP Voice
TDM Voice
PG
PG/CTI
143990
Unified CM Cluster 1
PSTN
M
M
M
M
M
CVP
AW/HDS
Agent
VoIP WAN
IP
Agent
IP
V
V
Unified CM Cluster 2
M
M
M
M
M
PG
PG/CTI
PG/CTI
ICM
PG/CTI