[Asterisk-Users] zaptel and low ring voltage

[Ryan Courtnage]

Hi all,

Several months ago we built an * box with a quad-FXO tdm400p (REV e/f).
>From the get-go, there has been a problem where occasionally (2-3 times
a week) zaptel/* will not detect the ringing on a line.  (The call will
ring through to telco voicemail).

The problem is not specific to a single line or FXO port on the tdm400p.

I have 2 theories:

#1 - the ring voltage for some calls is below acceptable levels

#2 - the tdm400p card is bad

Assuming #1, can the zaptel driver be tweaked to be more sensitive to
ringing?

Any other ideas or experiences?

Running asterisk/zaptel v1.0.2

Thank you,

-- 
Ryan Courtnage
Director & CTO
Coalescent Systems Inc
403.244.8089
www.coalescentsystems.ca