Thruway\Procedure::removeCall PHP Method

    public function removeCall(Call $call)
    {
        $newQueue = new \SplQueue();
        while (!$this->callQueue->isEmpty()) {
            $c = $this->callQueue->dequeue();
            if ($c === $call) {
                continue;
            }
            $newQueue->enqueue($c);
        }
        $this->callQueue = $newQueue;
        $registration = $call->getRegistration();
        if ($registration) {
            $registration->removeCall($call);
        }
    }