Hello,

I don't know how your gateway works. You need to provide detailed version. What I can do now is to ask how can I explain the setting further so you can understand it better.

```php
'url' => 'http://example.com/api/sms.php?',
'params' => [
'send_to_name' => 'mobile',
'msg_name' => 'message',
'others' => [
'param1key' => 'param1value',
'param2key' => 'param2value',
'param3key' => 'param3value',
'param4key' => 'param4value',
'param5key' => 'param5value',
]
]
```

Let me know what is no clear so that I can explain further. What I guess from your url is this.

```text
URL = https://smsapi.greenline.lk/api/sendSMS/?
Send to name = number
Message name = message
param1key = key
param1value = theValueOfYourKeyHere
```

If you are not sure, you can check with your gateway team with above details.

Thank you