Partner SLT ringing

[klspidey]

I need some help with a Partner system
We ususally don't work on the Avaya equipment so, I lost with this.
The customer has a SLT on ext 11, it calls out , can make ext calls but, no ring.
Here what I have found out and done. I checked programming the ext 11 is set for immediate ring.
I used my butt set and i can hear ringing but its so low it actually doesnt ring my butt set.
I have swapped SLT to make sure it wasn't the phone ( which is a cordless).
Is the card bad and needs to be replaced or is it distinct ringing that I need to change?
Thanks for any and all input and help

 

[TouchToneTommy]

Have you tried other station ports, and other station ports on other cards?

The Partner's ringing voltage is lower than the normal 90V, and the waveform is pretty square. I've had Fax machines that simply won't answer to the Partner's ring. I've also found old 206 modules to put out more voltage than the ACS and the 308 cards.

 

[supertech2000]

Ring voltage should be about 85 VAC riding on the -46 VDC.

 

[klspidey]

TY everyone for the help.