Cisco Cisco Unified Customer Voice Portal 10.0(1)
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Cisco Internet Service Node (ISN) Configuration and Administration Guide
OL-1251-03
Chapter 8 VoIP Configuration
ISN Endpoint Limitations
IP Transfer Example (IPCC Routing)
An IP transfer to an IPCC agent is very similar to an IP transfer to an ACD (TDM) agent with the
following exceptions:
following exceptions:
•
The egress Gateway for this case is a Call Manager. In the Gatekeeper, the agent extensions are
configured to point to the Call Manager’s IP address.
configured to point to the Call Manager’s IP address.
•
When Call Manager receives the new call, it uses the “Skinny protocol” to connect to the agent at
an IP phone. The voice channels are then connected from the ingress Gateway to the IP phone.
an IP phone. The voice channels are then connected from the ingress Gateway to the IP phone.
ISN Endpoint Limitations
lists endpoint limitations of the ISN 2.1 Voice Browser.
Table 8-2
ISN Endpoint Limitations
Limitation
Description
Gatekeeper single point failure.
If a Gatekeeper fails and no hot standby is configured, the
following features of call routing will be affected:
following features of call routing will be affected:
•
If Gatekeeper is used for inbound call routing, it is not
clear which Voice Browser would route the call to.
clear which Voice Browser would route the call to.
•
No switch transfers will succeed.
Registering to different H.323 zones on a
single Gatekeeper is not implemented.
single Gatekeeper is not implemented.
The Voice Browser is lacking a parameter that would
permit it to register into different zone on the same physical
Gatekeeper box.
permit it to register into different zone on the same physical
Gatekeeper box.
Outbound Alternate Endpoint
functionality not fully supported when
transferring to agents reserved by ICM.
functionality not fully supported when
transferring to agents reserved by ICM.
The agent reserve timer can expire before the call arrives,
allowing a different call to reach the agent that does not
match the call data previously sent to the agent by the ICM
software.
allowing a different call to reach the agent that does not
match the call data previously sent to the agent by the ICM
software.
Use the router requery feature instead.
DTMF originating from an IP Phone is
not supported for Comprehensive IVR
Mode.
not supported for Comprehensive IVR
Mode.
DTMF input in Comprehensive IVR mode requires the
dtmf-relay capability of rtp-nte when the DTMF must be
passed to the ASR recognition server for processing. Call
Manager and IP phones do not support rtp-nte.
dtmf-relay capability of rtp-nte when the DTMF must be
passed to the ASR recognition server for processing. Call
Manager and IP phones do not support rtp-nte.
IP Phone cannot transfer in VoIP network
in Advanced Speech IVR mode.
in Advanced Speech IVR mode.
Because this version of the IOS does not support IP to IP
transfers, it is only possible for a caller originating from an
IP Phone to perform a transfer back to the TDM network.
transfers, it is only possible for a caller originating from an
IP Phone to perform a transfer back to the TDM network.
G711ulaw is required codec when doing
ASR/TTS.
ASR/TTS.
The ASR/TTS vendors currently only support g711ulaw
for voice recognition and synthesis.
for voice recognition and synthesis.