Is it possible that the VOIP press is delayed or lost?

Question

I am working on a VOIP based application. The deployment target is 8.0.
I used the structure PUSHKitto notify VOIP push. My application runs in the background and relies on VOIP to send chat and call notifications.

The server is based on node.js and uses the following for VOIP push. https://www.npmjs.com/package/apn-test

Most often, when an iOS application is in the background, it either receives a VOIP alert, or the VOIP button is skipped. On the server side, the VOIP APN is reportedly sent successfully.
I can not determine where the problem is. If someone has encountered a similar problem or has any idea, please help.

NOTE. VoIP points are considered high priority notifications and delivered without delay.

Any help is appreciated.

Answer 1

Make sure you set the priority.

https://github.com/node-apn/node-apn/blob/master/doc/notification.markdown#notificationpriority

Answer 2

Use this simplepush.php file

<?php

// Put your device token here (without spaces):


      $deviceToken = '1234567890123456789';
//


// Put your private key passphrase here:
$passphrase = 'ProjectName';

// Put your alert message here:
$message = 'My first push notification!';



$ctx = stream_context_create();
stream_context_set_option($ctx, 'ssl', 'local_cert', 'PemFileName.pem');
stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase);

// Open a connection to the APNS server
$fp = stream_socket_client(
//  'ssl://gateway.push.apple.com:2195', $err,
    'ssl://gateway.sandbox.push.apple.com:2195', $err,
    $errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx);

if (!$fp)
    exit("Failed to connect: $err $errstr" . PHP_EOL);

echo 'Connected to APNS' . PHP_EOL;

// Create the payload body

$body['aps'] = array(
                     'content-available'=> 1,
                     'alert' => $message,
                     'sound' => 'default',
                     'badge' => 0,
                     );



// Encode the payload as JSON

$payload = json_encode($body);

// Build the binary notification
$msg = chr(0) . pack('n', 32) . pack('H*', $deviceToken) . pack('n', strlen($payload)) . $payload;

// Send it to the server
$result = fwrite($fp, $msg, strlen($msg));

if (!$result)
    echo 'Message not delivered' . PHP_EOL;
else
    echo 'Message successfully delivered' . PHP_EOL;

// Close the connection to the server
fclose($fp);

Use the commands below to create the pem file and use it in the code above

$ openssl x509 -in aps_development.cer -inform der -out PushCert.pem

# Convert .p12 to .pem. Enter your pass pharse which is the same pwd that you have given while creating the .p12 certificate. PEM pass phrase also same as .p12 cert.  
$ openssl pkcs12 -nocerts -out PushKey1.pem -in pushkey.p12

Enter Import Password:

MAC verified OK

Enter PEM pass phrase:

Verifying - Enter PEM pass phrase:

# To remove passpharse for the key to access globally. This only solved my stream_socket_client() & certificate capath warnings.
$ openssl rsa -in PushKey1.pem -out PushKey1_Rmv.pem

Enter pass phrase for PushChatKey1.pem:

writing RSA key

# To join the two .pem file into one file:
$ cat PushCert.pem PushKey1_Rmv.pem > ApnsDev.pem

After that, go to the simplepush.php command and the fire → php simplepush.php command

In this way, you can test your installation set notification architecture.

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