public Boolean numberValidator(int number)
    {

        Boolean exist = false;
        if (comboBox2.Items.Equals(number))
        {
            exist = true;
        }

        return exist;
    }

    public void processCall(int rNumber)

    {

        if (!numberValidator(rNumber))
        {
            p1.TextBox1.Clear();
            p1.TextBox1.Text = "Not connected";

            //MessageBox.Show(p2.returnPhoenStatus());
        }

        else
        {

                p1.TextBox1.Clear();

                p1.TextBox1.Text = "Call in progress";

                p2.receiveCall(1);

                p1.setStatus("Busy");
                /*
                if (p2.btnCallPressStatus())
                {
                    p1.TextBox1.Clear();

                    p1.TextBox1.Text = "Call initiated";
                }*/

         }


       }


    private void button1_Click(object sender, EventArgs e)
    {
        if (comboBox1.SelectedIndex == 0)
        {
            p1.Show();
            comboBox2.Items.Add(1);
            p1.setStatus("A");
        }
        if (comboBox1.SelectedIndex == 1)
        {
            p2.Show();
            comboBox2.Items.Add(2);
            p2.setStatus("A");
        }
    }
}

}




    string status;

    public void setStatus(string Status)
    {
        status = Status;
    }

    public string returnStatus()
    {
        return status;
    }

    public void receiveCall(int callerNumber)
    {
        setStatus("Busy");

        btnCall.Text = "Answer";

        textBox1.Text = "Phone " + callerNumber + " Calling.";

    }

    public void makeCall(int number)
    {
        phone2 p2 = new phone2();
        network net = new network();

        MessageBox.Show(p2.returnStatus()); // this line not returing status of phone2
        if (p2.returnStatus() == "A")
        {
            net.processCall(number);
        }
        else
        {
            textBox1.Text = "Receiver Busy";
        }


    }

    public TextBox TextBox1
    {
        get
        {
            return textBox1;
        }
    }

    private void btnCall_Click(object sender, EventArgs e)
    {
        string number = textBox1.Text;
        int numberInt = Convert.ToInt16(number);


        makeCall(numberInt);
    }

    string phoneNo = "";
    private void btn2_Click(object sender, EventArgs e)
    {
        phoneNo = phoneNo + btn2.Text;

        textBox1.Text = phoneNo;
    }
}