[lafleur]

I have installed a SPA3000 in back of a Panasonic KXT-D1232 PBX...

The basic system work, but there are a few odd thing that I need some help on.

1) If I make a call from the PBX to the SPA3000 via the FXO port, the call works just fine, but when I hang up from the PBX side, it take the PBX and SPA3000, 60-120 second to break the connection.

2) If I make a call to a number that rings but no answer, the SPA3000 abandons the call after about 60 seconds... What parameter in the SPA3000 controls this time?

[mberlant]

On the Info page, when the PSTN Line is idle, what do you see for PSTN Line Voltage? In a normal telephone system is should be -48VDC. Some small PABXes and EKTSes deliver much less, assuming that the telephones connected will be much closer to the switch than a real telephone customer might be to the Central Office.

If you find that this Idle Line Voltage is smaller than -48V, you will need to adjust the Line-in-Use Voltage to be about 7V smaller than that number.

[lafleur]

Yes, I have had that problem before...

KXT-D use a -28v talk battery, so I have it set at 18v... when off hook, we get 7v.

Also the busy/re-order tone are odd, so I used a spectrum analyzer to map the tones and cadence of the unit, but its still not working... (350hz, 440hz)

KXT-D do not have CPC on disconnect, a real pain...

[lacourse]

lafleur,

Any chance you could outline your configuration from default settings? I am trying to use an SPA3000 to extend an extension on my Toshiba PBX accross my ethernet LAN.

I appreciate any help you can offer.

Scott

[lafleur]

I am on travel until wed next week, then would be happy to send you what I did... (I found everthing here reading this group)

[lafleur]

this is the tone command that I use to detect hang-up on PBX side..

350@-25,440@-25;4(.260/.260/1+2)

[myridom]

Lafleur,

Look at what I did to tweak my disconnect tone, it might be just what you are looking for.
http://voxilla.com/forum-viewtopic-t...5dae07397.html

MyridoM

[lafleur]

I did just about what you did... I use an audio spectrum analyzer with an FFT to detect the tone and a O-Scope to look at the cadence.

thanks...

[myridom]

I wish I had access to those type of tools.. I had to do this on the cheap.
LOL, get it done before the shareware expires.. hehehe

[lafleur]

I use free or almost free sound card tools.... I use a 600ohm transformer and a .47uf cap in series to tip/ring , other side of transformer to audio in on sound card.

one such program is www.sigview.com

another:
DAZYWEB LABORATORIES SA-3002 SPECTRUM ANALYZER V1.33 REV 24-January-2004 http://www.dazyweblabs.com

another:
Analyzer 2000, http://www.brownbear.de

tom...