Label not being applied on participant after conference is created

[johnpaulmedina]

Issue Summary

Label for the second participant is not being applied to the call participant. I even tried participantLabel. When creating the conference the first call accepts the participantLabel value.

Steps to Reproduce

1. Client initiates new outbound call
2. Application hits app url which establishes a new conference via $response->dial()->conference($name, [])
3. Wait url triggers logic to add second participant while setting the label attribute

Code Snippet

public function callParticipantFromConference(TelAccount $account, $callType, $conference, $toPhone) {
    
    $client = new Client($this->account->sid, $this->account->token);

    $client->conferences($this->request->ConferenceSid)->participants->create(
    normalize_phone_to_E164(env('DEFAULT_CALLER_ID')), // From
    normalize_phone_to_E164($toPhone), // To
    [   
        "label" => "customer",
        "earlyMedia" => true,
        "beep" => "onEnter",
        "endConferenceOnExit" => true,
        "record" => true,
    ]);

    $response = new VoiceResponse;
    
    echo $response;
}

Exception/Log

No exception

Technical details:

• twilio-php version: 8.3.7 & 8.3.8
• php version: 8.2

[johnpaulmedina]

Also, how come when we create the initial conference the attribute to pass for the participant is participantLabel?

These should be standard across the Participant. One should not be label and the other participantLabel

$client = new Client($this->account->sid, $this->account->token);

$response = new VoiceResponse;

$dial = $response->dial();
$dial->conference($name, [
    "participantLabel" => "agent-{$this->user->extension->id}",
    "waitUrl" => $this->getConfParticpantUrl($name),
    "beep" => true,
    "startConferenceOnEnter" => true,
    "endConferenceOnExit" => true
]);