Cisco AS5350XM Configuration Manual page 163

Configuring Voice over IP
Syntax:
router(config)# voicecap entry <name> <parameter list>
Example:
router(config)# voicecap entry npecho_ctrl v2=512 v51=32769
Apply the Voicecap entries to the voice port by entering the following CLI command:
2.
Syntax:
router(config)# voicecap configure <name>
Example:
router(config)# voicecap configure npecho_ctrl
The following example shows the complete procedure for creating and applying Voicecap:
router(config)# voicecap entry npecho_ctrl v2=512 v51=32769
router(config)# voice-port 3/0
router(config-voiceport)# voicecap configure npecho_ctrl
router(config-voiceport)# end
The Voicecap must be applied to the voice port.
Note
The Cisco IOS CLI show command does not display the current echo state. However, you can display
the EST trace messages that show the tone detections and the resultant echo operations if you issue debug
trace module f080 0010 x/y/z. Nextport enables and disables the nonlinear processor (NLP) and the echo
canceller based on reception of 2100-Hz answer tones from the IP side or PSTN side and generates EST
trace messages for each tone detected and its echo operation. Nextport also detects the 250 milliseconds
of silence and generates EST trace messages to indicate such detection and to indicate that the echo state
has been restored.
To display the EST trace messages, issue debug trace module f080 0010 x/y/z as follows:
router# debug trace module f080 0010 s/d/m
where:
s = slot
•
d = dial feature card
•
m = module number
•
When the default configuration values for Index 51 and Index 52 are used, IP tone detection and
notification are disabled, and all existing features continue to function as normal.
The following example shows EST trace messages collected from the IOS console:
5350-torpedo#
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
IP side
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
*Apr 26 21:40:51.735:
00:00:14: Port Trace Event:
Port : 3/00
Address : 0x3000000
Trace Event: 0x2
Data Format: ASCII
Data Len : 56
Data : Session 0x0144 Received Early ANS tone 0x01 from
00:00:14: Port Trace Event:
Port : 3/00
Cisco AS5350XM and Cisco AS5400XM Universal Gateways Software Configuration Guide
Configuring Basic VoIP
13