Only with a few telephones number (just near to our phisical place, on our same village) I have this problem: I can receive calls from them without problems. But when I try to call them, I get a hungup, just in the moment they answer the call (just in the moment, they take the phone).
I have a TDM400P with two FXO modules (the red one). I set the wctdm module debug to 1, and this is the log in /var/log/messages just in the moment that the other person try to answer the phone after a few rings:
Jun 22 10:26:55 trixbox1 kernel: NO BATTERY on 1/1!
Jun 22 10:26:55 trixbox1 kernel: 1551996612 Polarity reversed (1 ->-1)
Jun 22 10:26:55 trixbox1 kernel: BATTERY on 1/1 (-)!
Jun 22 10:26:55 trixbox1 kernel: 1551996836 Polarity reversed (-1 -> 1)
If I try to call to my mobile phone (or another phones that I know works fine), I have no problem, and this log is like this
Jun 22 10:28:52 trixbox1 kernel: 1552054064 Polarity reversed (1 ->-1)
Jun 22 10:29:04 trixbox1 kernel: 1552066467 Polarity reversed (-1 -> 1)
And I can talk without any problem.
Do you have any clue to fix that?
Thanks a lot!
This is my zaptel.conf and zapata.conf
channel => 1-4
loadzone = es
defaultzone = es