SELECT * FROM `voice_compaign_summary` WHERE status='V' AND alloted_apis='' AND occupied=0  AND compaign_id='19836'  	LIMIT 1 

 user dedicated gateway 

<pre/>Array
(
)
 user gatway is empty 

isReserved : 0 

<br>SELECT id FROM `voice_gateways` WHERE FIND_IN_SET ('8', `voice_plan_id`) AND isDedicated=0  AND isReserve=0    AND status=1  AND isDeleted=0   AND api_owner_id='admin'   ORDER BY todays_credits/channels

 plan gateways 

<pre/>Array
(
    [0] => 75
    [1] => 84
    [2] => 100
    [3] => 101
    [4] => 103
)

1
<pre/>Array
(
    [0] => 8645312374
)
no gateway found for this campaign