Cisco Cisco IPCC Web Option Leaflet

The connection between the Dialer and the Unified CM cluster consists of multiple Skinny Client 
Control Protocol (SCCP) sessions, one for each dialer port. The duplexed PGs (Side A and Side B) 
shown in 

 are composed of a Generic PG (with Unified CCE PIM and a Unified IP IVR PIM), 

MR PG, CTI server, and CTIOS server process. The connection between the duplexed PG and the 
Unified CM cluster is the JTAPI link.

The G.711 protocol is required between the Dialer and the IP endpoint (for example, the voice gateway 
or IP phone).

 shows the deployment model for two dialers. Each dialer is associated with the Unified CM 

subscriber on its respective side and has all of its ports in one device pool for that subscriber. This 
configuration that is shown provides 192 dialer ports. To scale upward, you can add more pairs of dialers 
(PG sides A and B) and subscribers, for up to four pairs (or eight dialers, PG sides, and subscribers) per 
Unified CM cluster (see 

). The use of multiple dialers provides high availability for this 

deployment model. For more details on high availability, see the section on 

.

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Logger A

Campaign

Manager

Dialer 1

Subscriber 1

Publisher

Side 1A

PG

Logger B

Side 1B

PG

Dialer 2

Subscriber 2