Listen Mode VERY choppy

[enjay]

Occassionally while listening in on a Agent It gets EXTREMELY choppy the system util is very low what route of troubleshooting could I take for this?

-enjay

[mflorell]

Are you using meetme or app_conference?

What codecs are being used by all parties?

What method are you using to listen-in on your agents?

What is the loadavg when you do this and hear bad audio?

[enjay]

meetme

ulaw

dialing into conference via softphone (6$session_id)

0.23 -> 1.25

[enjay]

Im experiencing jitter period got any troubleshooting techniques for me?

[mflorell]

We do a LOT of remote monitoring like that every day and the choppyness is usually only caused when the network connection is congested. No real suggestions other than to set the codec to GSM which does help because it uses 30% of the bandwidth of Ulaw.

[enjay]

I changed that and will keep an eye on it.. Theres only 8 agents using the system and Im getting jitter etc even when calling out.. I have multiple PRI's.

-enjay

[mflorell]

What kind of T1 card are you using?

[roche]

Well I had alot of choppy calls,

I recomend you go to the floor (where the agents are ) and put an eye on how they are working.

I did that and I realized that in 90 % of the time after a sale they used to logout , filled some manuals form, and loggin again.

I think that acction is so expensive for asterisk and the database, I told them not to do that and the things get better with the choopy calls,

The other thing is we had terrible networks problems, the wires were damaged, and we had to change the switch where the agents computer were located, also the initial headphones didn't work so well we had to change for others more expensives.

We are using Xlite and we have changed the Transmit Silence to Yes, the agents and the customer will thank you hehehe.

I have some issues unresolved (network problems) and in some case the Load Av increase to 5.0 or more , I think is a hardware problems, we are using raid 5 probably some hard disk with problems.

And I am looking for a second Iax provider

[enjay]

Im using a TE412P card


Roche, when you say transmit silence do you mean (preserve bandwidth during silence periods). Configured from the advanced->network menu?

-enjay

[mflorell]

OK, the TE412P could be part of your problem. Make sure that you have disabled the hardware dtmf detection in the wct4xxp.c driver code, it interfereswith meetme.

change this line:
static int vpmdtmfsupport = 1;

to this:
static int vpmdtmfsupport = 0;

and "make clean; make; make install"

Then stop asterisk, ztcfg -s and restart it all, or just reboot.

[roche]

Im using a TE412P card


Roche, when you say transmit silence do you mean (preserve bandwidth during silence periods). Configured from the advanced->network menu?

-enjay

Advanced -> Audio Settings -> Silence Settings -> Transmit Silence -> Yes

[enjay]

roche, what version are you running I dont have that option..

[roche]

roche, what version are you running I dont have that option..

X-Lite v2.0 Build 1105d for Linux

Xlite free version: http://www.xten.com/index.php?menu=download

I don't know if the win version is diffrent

[enjay]

Roche,

What kind of headsets do you use? I hooked up a hardphone to the system and I get no problems at all. Im getting echo, jitter etc with Xlite and some cheapy labtech headsets..

[roche]

Roche,

What kind of headsets do you use? I hooked up a hardphone to the system and I get no problems at all. Im getting echo, jitter etc with Xlite and some cheapy labtech headsets..

Well right now we bought some Genius HS-04A the cost was 9000 Colones CR that means 17 $ probably in USA you will find betters prices and definitly must be other people with a better recommendation.

17$ Headset are still "Lemons" but for a call center are good enough

In the iax.conf file I have:

[general]
disallow=all
allow=gsm
jitterbuffer=no
forcejitterbuffer=no
tos=0x04
autokill=yes

[enjay]

iax? isnt xlite a sip only phone?



Im still getting echo with my callers.. I've tried disablping the vpmdtmfsupport etc...

[enjay]

Is there anything else that needs to be disabled as well? I can call strait from the softphone out and it sounds great it appears that its only with meetme.

[enjay]

Has anyone experienced issues with onboard soundcards? AC97?

[marvin]

enjay,

you said that you hook up a hardphone and u have no problem on it, then the problem would probably be in the pc itself probably because of viruses, spyware, etc. or any other possible disturbances since you are using a softphone, so i asked my tech support here to regularly restore a clean image of the pc atleast once a week.
another possible cause is that your server have reach its max number of channels/agents i my case it can only cater upto 15 seats. i have also tried working with P4 3.Ghz @1GB ram it can only take 8-12seats, adding more agent into it will create jitters, choppy lines or breaking .
i am using a softphone too (eyebeam) and doesnt have any problem with it.

[enjay]

Yea wish you were right Marvin

Brand new systems (no virii/spyware) P4 3.4ghz workstations with XP and nothing else other than mozilla and softphone.

The server(s) are 3.4ghz XEONS with a dual XEON system as the apache/database server. The system load should not be an issue at all.

I think my problem might be that when they are calling long distance they go across an IAX trunk to another server of mine (on the same lan, same switch gigabit connection). yet I think for the most part all of my issues happen when going over that trunk.

[marvin]

yeah, its possible hmmm packet loss ... but then again u said that when ur using the hardphone its fine so i guess the network problems such as packet loss may not be a problem.

[enjay]

Think the provider had a lot to do with it. Additionally had to swap out the sound cards (onboard sucks) the microphone was not strong enough..

-enjay