Magento – How to i send SMS when only customer register success Magento ver. 1.9.2.2

magento-1.9module

I want to send SMS when customer register success, I use customer_register_success magento event not working.
But when i use customer_address_save_after magento sms sending but problem here every time change address customer get sms alert.

How can i use customer_register_success event only for customer register success

\app\etc\modules\Sslw_Ismsregister.xml

<?xml version="1.0" encoding="UTF-8"?>      
        <config>
            <modules>
                <Sslw_Ismsregister>
                    <codePool>local</codePool>
                    <active>true</active>
                </Sslw_Ismsregister>
            </modules>
        </config>

app\code\local\Sslw\Ismsregister\etc\config.xml

<?xml version="1.0" encoding="UTF-8"?>
        <config>
            <modules>
                <Sslw_Ismsregister>
                    <version>0.0.1</version>
                </Sslw_Ismsregister>
            </modules>
            <global>
                <models>
                    <sslwismsregister>
                        <class>Ismsregister_Model</class>
                    </sslwismsregister>
                </models>
                <events>
                    <customer_register_success>
                        <observers>
                            <Sslw_Ismsregister_model_observer>
                                <type>singleton</type>
                                <class>Sslw_Ismsregister_Model_Observer</class>
                                <method>SendSmsRegister</method>
                            </Sslw_Ismsregister_model_observer>
                        </observers>
                    </customer_register_success> 
                </events>
            </global>
        </config>

app\code\local\Sslw\Ismsregister\Model\Observer.php

 class Sslw_Ismsregister_Model_Observer {
            public function SendSmsRegister(Varien_Event_Observer $observer) {  
              Mage::log('customer_register_success '.'Mobile==',null,'SendSmsRegister001.log' );  //No log created 
              $msisdn = $observer->getCustomerAddress()->getTelephone();
               Mage::log('customer_register_success '.'Mobile=='.$msisdn,null,'SendSmsRegister00.log' );
//NOT Create Log here for this event

            //START SMS API Code here your code here    

          //ENd SMS API Code here your code   
            }

        }

customer_address_save_after magento sms sending (SMS API Working Properly) but problem here every time change address customer get sms alert Module Code below:
Just change customer_address_save_after==>customer_register_success
https://github.com/SSLWireless/MagentoSMS/tree/master/Magento_SendIsmsRegister/app

Magento Events Cheat Sheet (1.9) List:

https://www.nicksays.co.uk/magento-events-cheat-sheet-1-9/

Best Answer

I got my solution describe flowing:

magento customer registration 2 way 1. Create Account directly from sinup form 2. Create account order checkout time

The Above module work only for customer_register_success observers events work when customer Create Account directly from sinup form.

When customer create account order checkout time we need to add flowing

Add following Line Top of success.phtml

    // Retrieve order
    //$_order = new Mage_Sales_Model_Order();
    //$orderId = Mage::getSingleton('checkout/session')->getLastRealOrderId();
    //$_order->loadByIncrementId($orderId);

    // Start Send Emai Here......
    $order = new Mage_Sales_Model_Order();
    $incrementId = Mage::getSingleton('checkout/session')->getLastRealOrderId(); 
    $order->loadByIncrementId($incrementId);

   //Start New Customer Registration SMS Here           
    $customerAddressId = Mage::getSingleton('customer/session')->getCustomer()->getDefaultBilling();
    $address = Mage::getModel('customer/address')->load($customerAddressId);
    $msisdn = $address->getTelephone();                     
    $quoteId = $order->getQuoteId();
    $quote = Mage::getModel('sales/quote')->load($quoteId);
    $method = $quote->getCheckoutMethod(true);
    $customer_email = $order->getCustomerEmail();
    if ($method == 'register'){ 
    //code to handle if customer just registered to your site
    //START SMS API Code here your code

    //ENd SMS API Code here your code

     } elseif($method == 'guest') {
    //code to handle if customer is guest
     } else {                
    //code to handle for logged in customer
     }  
   //END New Customer Registration SMS Here