Cisco Cisco IP Contact Center Release 4.6.1 Technical References

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Overview 
 
 
1.1.  ACD Interface Requirements 
The OAI driver is installed on the same server as the Aastra ARS Gateway 
and connects to the PointSpan PBX using the PointSpan switch Server 
primary IP Address. Each Aastra ARS Gateway needs a dedicated OAI 
channel. It is not possible to share an OAI channel between several Aastra 
ARS Gateways. 
 
Aastra 
PointSpan PBX
Aastra ARS 
Gateway A
ARS PG1A
OAI
#13
OAI 
driver
 Peripheral Gateway A
 
Figure 2: Aastra OAI Connectivity for Simplexed PG 
When started, the OAI driver opens up the OAI link to the PointSpan 
switch. The Aastra ARS Gateway registers to the local OAI driver to 
receive and send OAI messages. 
 
 
Aastra 
PointSpan PBX
Aastra ARS 
Gateway A
ARS PG1A
OAI
#14
OAI 
driver
 Peripheral Gateway A
Aastra ARS 
Gateway B
ARS PG1B
OAI
#15
OAI 
driver
 Peripheral Gateway B
Synchronized
 
Figure 3: Aastra OAI Connectivity for Duplexed PG 
 
As each OAI channel can only have one configured OAI client IP address, 
there are two different OAI channels needed for a duplexed ARS PG 
installation (OAI channel #14 and #15 in above picture). Both OAI drivers 
open up the OAI link to the PointSpan switch when started but only one 
Aastra ARS Gateway is active and registered to the local OAI driver. The 
ARS PG A is synchronized with its peer ARS PG B to control activation 
of only one ARS Gateway.