$_FIRST_PERIOD='First period';
$_FIRST_PERIOD_STEP='Step Of first period';
$_NEXT_PERIOD='Next Period';
$_NEXT_PERIOD_STEP='Step of next period';
$_FREE_TIME='Free Time';
$_ROUTES='Routes';
$_ROUTE='Route';
$_GATEWAY='Gateway';
$_NUMBER='Number';

$_FAILOVER_TRUNK='Failover Trunk';
$_PROTOCOL='Protocol';
$_PROVIDER = 'Provider';

$_ALLOW_ANSWER='Allow answer';
$_ALLOW_CALLS='Allow Calls';
$_TIME_DIVISION='Time Division';
$_SECONDS='Seconds';
$_ORIGIN='Origin';
$_ANSWER='Answer';