Call Drops During Transfer Over Gateway; H.323 Client Dtmf Digits Not Detected; Redirected Call Is Disconnected - Cisco Unified Contact Center Express Servicing And Troubleshooting Manual

CRS Engine Problems

Call drops during transfer over gateway

Symptom
the call is transferred.
Error Message None.
Possible Cause
Recommended Action
require an MTP and reset the H.323 port.

H.323 client DTMF digits not detected

Symptom
Error Message None.
Possible Cause
Recommended Action

Redirected call is disconnected

Symptom
directed.
Error Message None.
Possible Cause
Recommended Action
Following are the gateways and the protocol for each gateway (note that the protocol is in parentheses):
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Cisco Customer Response Solutions Servicing and Troubleshooting Guide, Release 5.0(1)
8-34
When the CRS system receives a call made over a gateway, the CRS system drops the call if
The H.323 client does not support the Empty Capability Service and the H.323 port on
the Cisco Unified Communications Manager is not configured to use a Media Termination Point
(MTP).
Update the configuration of the Cisco Communications Manager H.323 port to
When a call originates from an H.323 client, DTMF digits are not collected.
The H.323 client only produces in-band DTMF signals. Cisco Unified Communications
Manager cannot detect in-band DTMF signals.
None.
A redirected call disconnects or a redirected call does not ring the IP phone to which it was
Some gateways do not support ringback.
Reconfigure the gateway and protocols so that they will support ringback.
26XX FXO (Media Gateway Control)
36XX FXO (36XX FXO Media Gateway Control)
VG200 FXO (Media Gateway Control)
DT-24+ (Skinny)
WS-6608-T1—[Cat6K 8-port T1 PRI] (Skinny)
WS-6608-E1 [Cat6K 8-port E1 PRI] (Skinny)
DE-30+ (Skinny)
AT-2, 4, 8 (AT-2, 4, 8 — )
Chapter 8 Troubleshooting Tips