Cisco Cisco Unified Customer Voice Portal 10.5(1)
Unified CVP Solution Components
The following subsections discuss components that are part of an overall Unified CVP solution,
but are not contained in the Unified CVP product itself.
but are not contained in the Unified CVP product itself.
SIP Proxy Server
A SIP Proxy Server is a device that routes individual SIP transport messages among SIP
endpoints. It plays a key role in Unified CVP’s high availability architecture for call switching.
It is designed to support multiple SIP endpoints of various types, and implements load balancing
and failover among these endpoints. SIP Proxy Servers themselves can be deployed alone or
as a pair.
endpoints. It plays a key role in Unified CVP’s high availability architecture for call switching.
It is designed to support multiple SIP endpoints of various types, and implements load balancing
and failover among these endpoints. SIP Proxy Servers themselves can be deployed alone or
as a pair.
Unified CVP can also be deployed without a SIP Proxy Server. In such cases, some of the Proxy
Server functions can be provided by the SIP Service, because it provides the ability to configure
a static table to look up destinations.
Server functions can be provided by the SIP Service, because it provides the ability to configure
a static table to look up destinations.
The benefits of using a SIP Proxy Server include:
•
Priority and weight routing can be used with the routes for load balancing and failover
•
If a SIP Proxy Server is already used in your SIP network, Unified CVP can be an additional
SIP endpoint—it fits incrementally into the existing SIP network
SIP endpoint—it fits incrementally into the existing SIP network
•
If the Cisco Unified Presence Server is being used as the SIP Proxy Server, dial plan
management is available in the web administration of the static routes
management is available in the web administration of the static routes
•
If the Cisco Unified Presence Server is being used as the SIP Proxy Server, you are better
positioned to also take advantage of Presence and Cisco Unified Client, as a compliment to
Unified CVP
positioned to also take advantage of Presence and Cisco Unified Client, as a compliment to
Unified CVP
If a SIP Proxy Server is not used, then Ingress Gateways and Unified CMs need to point directly
to Unified CVP. In such a deployment:
to Unified CVP. In such a deployment:
•
Load balancing is done via DNS SRV lookups from Gateway to DNS Server—SIP calls can
be balanced using this mechanism
be balanced using this mechanism
•
Load balancing of calls outbound from Unified CVP (outbound call leg) can be done in
similar fashion
similar fashion
•
Failover of SIP rejections can also be performed if SRV records are configured with ordered
priorities
priorities
Ingress Gateway
The Ingress Gateway is the point at which an incoming call enters the Unified CVP solution.
It terminates TDM phone lines on one side and implements VoIP on the other side. It also
It terminates TDM phone lines on one side and implements VoIP on the other side. It also
Planning Guide for Cisco Unified Customer Voice Portal Cisco Unified Customer Voice Portal 4.1(1)
16
Chapter 1: - Product Overview
Unified CVP Solution Components