Cisco Cisco Unified Customer Voice Portal 10.0(1)
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Cisco Internet Service Node (ISN) Product Description
OL-1250-03
Chapter 1 Introduction
Sample ISN Call Flows
4.
The Voice Browser communicates with the Call Manager, which returns the IP address of the IP
phone.
phone.
Note
The transfer is performed using H.323 protocol, as the ISN appears to the CCM as an H.323
device.
device.
5.
The Call Manager reserves an agent for the call.
6.
The Voice Browser (a) tells the ingress Gateway to tear down the existing RTP stream and (b)
re-route it to the designated agent’s IP phone.
re-route it to the designated agent’s IP phone.
7.
Meanwhile, the Voice Browser keeps H.245 control over the originating Gateway.
ISN Outpulse Transfer
shows an ISN outpulse transfer scenario.
Figure 1-20 ISN Outpulse Transfer
1.
The NAM/ICM sends route information and instructions informing the Application Server to
transfer the call.
transfer the call.
2.
The label begins with DTMF to indicate that the label should be used to outpulse the DTMF
characters. The Application Server removes the DTMF and generates a VXML page that tells the
Voice Browser to transfer the call in this way.
characters. The Application Server removes the DTMF and generates a VXML page that tells the
Voice Browser to transfer the call in this way.
Note
In outpulse transfer mode, the ISN will send whatever digits are in the label to the Gateway for
outpulsing. It is the customer’s responsibility to confirm interoperability with the target switch.
outpulsing. It is the customer’s responsibility to confirm interoperability with the target switch.