i have installed an asterisk server with legacy PSTN support using OpenVox card in order to dial-in or dial-out.
I have also set up some rules so i can make this happen and dialing in or out works fine until some days after when i try to call a number using a dahdi channel i get this on the console:
app_dial.c:2041 dial_exec_full: Unable to create channel of type ‘DAHDI’ (cause 17 - User busy)
If i restart the system, everything works as expected again.
Any hints on what could be wrong?