Explanation about stucked calls

When call is stuck in Active Calls and soft hangup button does not hangup the call - that means that call stuck in Asterisk because of Asterisk lock problem.

This often happens in Asterisk 1.4.18.1 which has many lock problems which leads to stuck channels.

Only Asterisk restart can delete these calls.

We suggest to upgrade to Asterisk 1.4.37-rc1 version which solves most of these problems.