A101 echo concerns
Submitted by daz on Wed, 07/16/2008 - 1:18pm.
Hello.
We went live with trixbox CE 2.6.1 and a sangoma A101 card (without HW echo canceller). We been sailing smoothly for a little over a week, making and receiving hundreds of clear calls; but today we had three echo problems within two hours. On two of the calls, we heard echo on our side of the line accompanied by static. On the third, the echo was on the far end of the line, with the problem serious enough for the person to complain. We've started a ticket with the T1 provider, since we're not sure where the problem lies. But, just in case it's on our side of things, what can we do to diagnose/mitigate it.
We configured the card with setup-sangoma using these options:
Select media type for AFT-A101 on port 1 [slot:4 bus:2 span:1]
1. T1
2. E1
3. Unused
4. Exit
[1-4]:1
Configuring port 1 on AFT-A101 as: T1, coding:B8ZS, framing:ESF.
1. YES - Keep these settings
2. NO - Configure line coding and framing
[1-2, ENTER='YES']:1
Select clock for AFT-A101 on port 1 [slot:4 bus:2 span:1]
1. NORMAL
2. MASTER
[1-2]:1
Select signalling type for AFT-A101 on port 1 [slot:4 bus:2 span:1]
1. PRI CPE
2. PRI NET
3. E & M
4. E & M Wink
5. FXS - Loop Start
6. FXS - Ground Start
7. FXS - Kewl Start
8. FX0 - Loop Start
9. FX0 - Ground Start
10. FX0 - Kewl Start
[1-10]:1
Select switchtype for AFT-A101 on port 1
1. National ISDN 2
2. Nortel DMS100
3. AT&T 4ESS
4. Lucent 5ESS
5. EuroISDN
6. Old National ISDN 1
7. Q.SIG
[1-7]:1
Configuring port 1 on 101 as a full T1
1. YES - Use all channels
2. NO - Configure for fractional
[1-2, ENTER='YES']:1
Select dialplan context for AFT-A101 on port 1
1. PSTN
2. INTERNAL
[1-2]:1
Port 1 on AFT-A101 configuration complete...
Hi,
Please send the
Thu, 07/17/2008 - 7:21am
Hi,
Please send the following information to techdesk@sangoma.com along with a call diagram also please reference this post.
EG. SIP --- ASTERISK ----- A10X --- TELCO
-the output from "wanrouter version"
-the output from "wanrouter restart" (asterisk needs to be turned off for this so it may need to be done after hours)
-the file /var/log/messages (the entire file containing a wanrouter restart)
-the output from "wanrouter hwprobe verbose"
-the output from “wanrouter status”
-the file(s) /etc/wanpipe/wanpipeX.conf (where X is the wanpipe number)
-the file /etc/zaptel.conf
-the file(s) /etc/asterisk/zapata*.conf
-the output from "ifconfig", (re run a couple of times with a second or so delay in between each run)
-the output from "cat /proc/interrupts" (re run a couple of times with a second or so delay in between each run)
-the output from "wanpipemon -i wXg1 -c Ta" (where X is the interface number 1,2,3,etc) for each interface
Marc
Sangoma Technologies
Member Since:
2008-05-05