Cisco AS5350 - Universal Access Server Configuration Manual page 139

Chapter 6 Configuring Voice over IP
The following example shows the complete create and apply Voicecap procedure:
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
Note The Voicecap must be applied to the voice-port.
The 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 enable debug trace
module f080 0010 x/y/z. Nextport enables and disables the nonlinear processor (NLP) and the echo
canceller based on reception of 2100Hz 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, enable debug trace module f080 0010 x/y/z as follows:
router# debug trace module f080 0010 s/d/m
s/d/m is defined as follows:
s = slot
•
• d = dfc
• 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:
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:
from IP side
*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:
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:
OL-3418-02 B0
00:00:14: Port Trace Event:
Port
Address
Trace Event: 0x2
Data Format: ASCII
Data Len
Data
00:00:14: Port Trace Event:
Port
Address : 0x3000000
Trace Event: 0x2
Data Format: ASCII
Data Len
Data : Session 0x0144 Received Tone Off ntf for code 0x01
00:00:14: Port Trace Event:
Port
Address
Trace Event: 0x2
Data Format: ASCII
Data
00:00:14: Port Trace Event:
Port
Address
Trace Event: 0x2
Cisco AS5350 and Cisco AS5400 Universal Gateway Software Configuration Guide
: 3/00
: 0x3000000
: 56
: Session 0x0144 Received Early ANS tone 0x01 from
: 3/00
: 63
: 3/00
: 0x3000000
Data Len : 45
: Session 0x0144 Received ANS tone 0x03 from IP
: 3/00
: 0x3000000
Configuring Basic VoIP
6-13