[asterisk-users] is chanisavail command reliable?

[Giorgio Incantalupo]

Hi,
I have an Asterisk box on a Debian Sarge distro with a Sangoma a102 PRI 
card and I have a big problem: Asterisk drops a lot of outbound calls.
I do not use groups, I want to use a free channel given from Asterisk.

What I do is:
1) use "chanisavail" command to ask Asterisk for a free channel to use
2) use that channel to dial outbound calls

Asterisk gives me the free channel but when I make a call Asterisk tells 
me the channel is not available (I check variable ${AVAILSTATUS}). I 
checked but that channel is not busy on another call.
How can it be possible? Is there anybody who can help me?

TIA


Giorgio Incantalupo