#!/bin/bash
asterisk -rx 'originate SIP/enforta/89098241133 extension 100@from-internal'
E=$(grep 'channel.c: Unable to request channel' /var/log/asterisk/messages | wc | awk '{print $1;}')
if [ "$E" -gt 0 ]
then
    cat /dev/null > /var/log/asterisk/messages
    service asterisk restart
fi