I have two PSTN lines from BSNL( Telco from India)
I have install asterisk with X101P card(ambient MD3200) .
After sucessfull installation I use it for 2 days without problem. but from last 2 weeks I face a problem of call drops.
so I try lots of things like removing busydetect ,call progress, rsolving IRQ conflicts . after that the problem is disappear for 1 or 2 days . but suddenly from yesterday i face the same problem. I havent change the configuration.
today I connected asterisk with the other line and it works fine. no call drops
I not able to trace the problem.
I checked the line voltage by connecting voltmeter to two leads of telephone line I got 53V in voltmeter.
please Help me .