[Asterisk-Users] zaptel and low ring voltage

[Andy Burns]

Ryan Courtnage wrote:

> zaptel/* will not detect the ringing on a line.  (The call will
> ring through to telco voicemail).

> Any other ideas or experiences?

Is the telco voicemail the only evidence you have that this is 
happening, or have you "seen" it happen?

Just wondering if there could be a problem with an engaged line causing 
calls to go to telco voicemail, rather than overflowing to the next line?