[cisco-voip] 2801: VoIP -> PSTN Echo Problems
Johan Bloemhard
bloemhard_johan at silverfalls.k12.or.us
Thu Mar 22 10:00:49 EST 2007
Thanks for the reply! I'm actually at 4.4.20. I can't pinpoint when
the problems started but it seems awfully close to after I updated my
equipment for DST 2007.
Here's my sh voice dsp:
2801#sh voice dsp
edsp 001 01 g711ulaw 0.1 IDLE 50/0/1.1
edsp 002 01 g711ulaw 0.1 IDLE 50/0/2.1
edsp 003 01 g729r8 p 0.1 IDLE 50/0/3.1
edsp 004 01 g729r8 p 0.1 IDLE 50/0/4.1
edsp 005 01 g711ulaw 0.1 IDLE 50/0/5.1
edsp 006 01 g711ulaw 0.1 IDLE 50/0/6.1
edsp 007 01 g711ulaw 0.1 IDLE 50/0/7.1
edsp 008 01 g711ulaw 0.1 IDLE 50/0/8.1
edsp 009 01 g729r8 p 0.1 IDLE 50/0/9.1
edsp 010 01 g729r8 p 0.1 IDLE 50/0/10.1
edsp 011 01 g711ulaw 0.1 IDLE 50/0/11.1
edsp 012 01 g711ulaw 0.1 IDLE 50/0/12.1
edsp 013 01 g711ulaw 0.1 IDLE 50/0/13.1
edsp 014 01 g729r8 p 0.1 IDLE 50/0/14.1
edsp 015 01 g711ulaw 0.1 IDLE 50/0/15.1
edsp 016 01 g711ulaw 0.1 IDLE 50/0/16.1
edsp 017 01 g729r8 p 0.1 IDLE 50/0/17.1
edsp 018 01 g729r8 p 0.1 IDLE 50/0/18.1
edsp 019 01 g711ulaw 0.1 IDLE 50/0/19.1
edsp 020 01 g729r8 p 0.1 IDLE 50/0/20.1
edsp 021 01 g729r8 p 0.1 IDLE 50/0/21.1
edsp 022 01 g711ulaw 0.1 IDLE 50/0/22.1
edsp 023 01 g729r8 p 0.1 IDLE 50/0/23.1
edsp 024 01 g711ulaw 0.1 IDLE 50/0/24.1
edsp 025 01 g729r8 p 0.1 IDLE 50/0/25.1
edsp 026 01 g729r8 p 0.1 IDLE 50/0/26.1
edsp 027 01 g711ulaw 0.1 IDLE 50/0/27.1
edsp 028 01 g711ulaw 0.1 IDLE 50/0/28.1
edsp 029 01 g711ulaw 0.1 IDLE 50/0/29.1
edsp 030 01 g729r8 p 0.1 IDLE 50/0/30.1
----------------------------FLEX VOICE CARD 0
------------------------------
*DSP VOICE CHANNELS*
DSP DSP DSPWARE CURR BOOT PAK
TX/RX
TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABRT
PACK COUNT
===== === == ======== ======= ===== ======= === == ========= == ====
============
C5510 001 01 g711ulaw 4.4.20 busy idle 0 0 0/0/2 08 0
3728/3815
C5510 001 02 g711ulaw 4.4.20 busy idle 0 0 0/0/3 12 0
755/796
*DSP SIGNALING CHANNELS*
DSP DSP DSPWARE CURR BOOT PAK
TX/RX
TYPE NUM CH CODEC VERSION STATE STATE RST AI VOICEPORT TS ABRT
PACK COUNT
===== === == ======== ======= ===== ======= === == ========= == ====
============
C5510 001 01 {flex} 4.4.20 alloc idle 0 0 0/0/0 02 0
77/0
C5510 001 02 {flex} 4.4.20 alloc idle 0 0 0/0/1 06 0
100/0
C5510 001 03 {flex} 4.4.20 alloc idle 0 0 0/0/2 10 0
29695/0
C5510 001 04 {flex} 4.4.20 alloc idle 0 0 0/0/3 14 0
16192/0
C5510 001 05 {flex} 4.4.20 alloc idle 0 0 0/1/0 02 0
8052/0
C5510 001 06 {flex} 4.4.20 alloc idle 0 0 0/1/1 06 0
1559/0
C5510 001 07 {flex} 4.4.20 alloc idle 0 0 0/1/2 10 0
2426/0
C5510 001 08 {flex} 4.4.20 alloc idle 0 0 0/1/3 14 0
3934/0
C5510 005 01 {flex} 4.4.20 alloc idle 0 0 0/2/0 02 0
3860/0
C5510 005 02 {flex} 4.4.20 alloc idle 0 0 0/2/1 06 0
9078/0
C5510 005 03 {flex} 4.4.20 alloc idle 0 0 0/2/2 10 0
21797/0
C5510 005 04 {flex} 4.4.20 alloc idle 0 0 0/2/3 14 0
42668/0
------------------------END OF FLEX VOICE CARD 0
----------------------------
Johan Bloemhard
Senior Information Technology Specialist
___________________________________
Silver Falls School District 4J
802 Schlador Street
Silverton, OR 97381
w: 503.873.6331
________________________________
From: Charles Ragan [mailto:ciscojock2002 at yahoo.com]
Sent: Tuesday, March 20, 2007 2:53 PM
To: Johan Bloemhard; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] 2801: VoIP -> PSTN Echo Problems
Hi Johan,
Could definitely be a dspware bug.
Do a sho voice dsp and check dspware version. we ran into a lot of echo
with 4.4.708.....we went to 4.4.18. check with tac for appropriate
upgrade procedures and versions for your hardware.
charles
At 12:31 PM 3/20/2007, Johan Bloemhard wrote:
Content-class: urn:content-classes:message
Content-Type: multipart/alternative;
boundary="----_=_NextPart_001_01C76B15.A23B775E"
I have been pulling my hair out concerning echo problems from IP->PSTN
calls. I have been through the
http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a
0080149a1f.shtml website multiple times that Ryan has previously
suggested reading.
It is an intermittent problem so it's very hard to troubleshoot. I have
a TAC case open but the TAC engineer is having me capture data in the IP
Port and the GW port (extremely difficult to do in a production
environment). Also the TAC engineer hasn't asked for any info on the
2801 (i.e., sh tech-support) or configs so it's my belief that maybe
it's being looked at from the wrong direction.
I was able to get a call out and pull the "sh call active voice" for the
call.
IOS: Cisco IOS Software, 2801 Software (C2801-SPSERVICESK9-M), Version
12.4(10), RELEASE SOFTWARE (fc1)
My stats for the call are as below which obviously my echo cancellation
isn't being activated. I find it hard to believe that I can have an
ACOMLevel of 0 but I'm not sure what could be causing this.
NoiseLevel=-62
ACOMLevel=0
OutSignalLevel=-70
InSignalLevel=-65
InfoActivity=1
ERLLevel=0
EchoCancellerMaxReflector=19368
My voice-port configuration is as follows:
Cisco-2801#sh voice port 0/1/1
Foreign Exchange Office 0/1/1 Slot is 0, Sub-unit is 1, Port is 1
Type of VoicePort is FXO
Operation State is DORMANT
Administrative State is UP
The Last Interface Down Failure Cause is Administrative Shutdown
Noise Regeneration is enabled
Non Linear Processing is enabled
Non Linear Mute is disabled
Non Linear Threshold is -21 dB
Music On Hold Threshold is Set to -38 dBm
In Gain is Set to -5 dB
Out Attenuation is Set to 5 dB
Echo Cancellation is enabled
Echo Cancellation NLP mute is disabled
Echo Cancellation NLP threshold is -21 dB
Echo Cancel Coverage is set to 64 ms
Echo Cancel worst case ERL is set to 6 dB
Playout-delay Mode is set to adaptive
Playout-delay Nominal is set to 60 ms
Playout-delay Maximum is set to 250 ms
Playout-delay Minimum mode is set to default, value 40 ms
Playout-delay Fax is set to 300 ms
Connection Mode is plar
Connection Number is 6331
Initial Time Out is set to 10 s
Interdigit Time Out is set to 2 s
Call Disconnect Time Out is set to 60 s
Ringing Time Out is set to 180 s
Wait Release Time Out is set to 30 s
Companding Type is u-law
Region Tone is set for US
Analog Info Follows:
Currently processing none
Maintenance Mode Set to None (not in mtc mode)
Number of signaling protocol errors are 0
Impedance is set to 600r Ohm
Station name None, Station number None
Caller ID Info Follows:
Standard BELLCORE
Caller ID is received after 1 ring(s)
Translation profile (Incoming):
Translation profile (Outgoing):
Voice card specific Info Follows:
Signal Type is loopStart
Battery-Reversal is enabled
Number Of Rings is set to 1
Supervisory Disconnect is signal
Answer Supervision is inactive
Hook Status is On Hook
Ring Detect Status is inactive
Ring Ground Status is inactive
Tip Ground Status is inactive
Dial Out Type is dtmf
Digit Duration Timing is set to 100 ms
InterDigit Duration Timing is set to 100 ms
Pulse Rate Timing is set to 10 pulses/second
InterDigit Pulse Duration Timing is set to 750 ms
Percent Break of Pulse is 60 percent
GuardOut timer is 2000 ms
Minimum ring duration timer is 125 ms
Hookflash-in Timing is set to 600 ms
Hookflash-out Timing is set to 500 ms
Supervisory Disconnnct Timing is set to 350 ms
OPX Ring Wait Timing is set to 6000 ms
Cisco-2801#
Thanks in advance,
Johan Bloemhard
Senior Information Technology Specialist
___________________________________
Silver Falls School District 4J
802 Schlador Street
Silverton, OR 97381
w: 503.873.6331
_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
Charles B Ragan
CCIE 1764 (Voice/R-S)
336-442-4361
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