[asterisk-users] Require a Type 102 milliwatt number

Tue May 27 16:07:37 CDT 2008

What is the value that should be received from ztmonitor. 

Regards, 
Sanjay Rajdev 

----- Original Message ----- 
From: "Dean Collins" <Dean at cognation.net> 
To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com> 
Sent: Wednesday, May 28, 2008 2:27:38 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi 
Subject: Re: [asterisk-users] Require a Type 102 milliwatt number 

Ok how do you use this then? 

I dialed 909-390-0002 Milliwatt and apart from hearing a tone my ztmonitor was just on full to the right. 

Cheers, 
Dean 

From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Darryl Dunkin 
Sent: Tuesday, 27 May 2008 4:23 PM 
To: Asterisk Users Mailing List - Non-Commercial Discussion 
Subject: Re: [asterisk-users] Require a Type 102 milliwatt number 

There are many listed here: 

http://web.textfiles.com/ezines/PHREAKSANDGEEKS/PnG-spring05.txt 

206-345-0020 Seattle Milliwatt 
425-226-0020 Seattle Milliwatt 
670-234-0102 Milliwatt 
781-382-5555 Milliwatt 
800-485-9076 Milliwatt 
877-250-0600 Milliwatt 
909-390-0002 Milliwatt 
914-372-9988 Milliwatt 

From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Sanjay Rajdev 
Sent: Tuesday, May 27, 2008 13:14 
To: Asterisk Users Mailing List - Non-Commercial Discussion 
Cc: Asterisk Users Mailing List - Non-Commercial Discussion 
Subject: [asterisk-users] Require a Type 102 milliwatt number 

Does anyone know a Type 102 milliwatt number that I can call to adjust the RxGain? I have tried the telco but no one is responding on their number. 

Regards, 
Sanjay Rajdev 

----- Original Message ----- 
From: "Matt Watson" <matt at mattgwatson.ca> 
To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users at lists.digium.com> 
Sent: Tuesday, May 27, 2008 5:02:24 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi 
Subject: Re: [asterisk-users] Voice low on ZAP 

On May 26, 2008 07:19:07 pm Sanjay Rajdev wrote: 
> I have a Sangoma A200 card on my asterisk box, the sound that is received 
> on the ZAP channel is very low, I is sometime difficult to hear the person 
> on the other side of the line. Is there a way we can increase the volume on 
> the ZAP channel 
> 
> 
> Regards, 
> Sanjay Rajdev 

rxgain= 
in zapata.conf 

However, before you go blindly upping the value, you should know that you run 
the risk of making echo problems worse by messing around with rxgain/txgain. 
However, tuning rxgain/txgain is something that you *should* do on all your 
FXO ports anyways... properly tuned ports will create far less echo than 
those using default values most of the time. 

Tuning rxgain/txgain is a little bit of a tedious task however, and I can;t 
really say there are alot of good guides out there on how to do it. 

The way I did it was first I tuned my rxgain by dialing a telco-owned 
milliwatt test number (should be able to get this from your telco, i believe 
its referred to as a Type 102 milliwatt test). You use that to tune rxgain, 
then the way I tuned txgain was by using the app_milliwatt application to 
essentially create my own milliwatt test number (need multiple FXO ports to 
do this), so basically i;d dial out from one FXO port and back into the other 
and adjust the txgain until i got it right... 

You need to use ztmonitor to watch the levels as you adjust tx/rxgain, I 
believe the magic number you want to hit in ztmonitor is around 14840 (thats 
off the top of my head so i might be off)... 

-- 
Matt 
http://www.mattgwatson.ca 

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