Cisco Cisco Unified Customer Voice Portal 10.5(1)
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Cisco Internet Service Node (ISN) Product Description
OL-1250-03
Chapter 1 Introduction
Sample ISN Call Flows
5.
The Voice Browser (a) tells the originating Gateway (GW_1) to tear down the existing RTP stream
to the agent and (b) terminates call control with the Gateway on the right (GW_2).
to the agent and (b) terminates call control with the Gateway on the right (GW_2).
6.
The Voice Browser instructs the originating Gateway (GW_1) to redirect the RTP stream to the new
Gateway (GW_3).
Gateway (GW_3).
7.
Meanwhile, the Voice Browser keeps H.245 control over both (a) the originating Gateway (GW_1)
and (b) the new Gateway (GW_3).
and (b) the new Gateway (GW_3).
Since the Voice Browser retains signaling control over the endpoint, the call can be transferred again –
multiple transfers – where the call stays under the control of the Voice Browser and just the voice path
itself is moved around.
multiple transfers – where the call stays under the control of the Voice Browser and just the voice path
itself is moved around.
ISN Local Transfer To IPCC
A local transfer is one that is routed to IPCC. This means that Cisco Call Manager is responsible for
performing the transfer.
performing the transfer.
depicts a local transfer scenario.
Note
The call flow in
presumes the call is already on ISN and receiving IVR treatment.
Figure 1-19 ISN Local Transfer to IPCC
1.
The NAM/ICM sends route information and instructions informing the Application Server to
transfer the call.
transfer the call.
2.
The Application Server generates a VXML page with instructions and sends it to the Voice Browser.
3.
The Voice Browser conducts a lookup at its Gatekeeper, which returns the IP address of Call
Manager.
Manager.