Magento Api Integration Calling Parameter do Not Match Signature

You need to comment some line of code during variable verification in Magento zend framework.

1) open file lib/Zend/XmlRpc/Server.php
2) check inside _handle method and find the piece of code like below

if (!$matched) {
    #require_once 'Zend/XmlRpc/Server/Exception.php';
    throw new Zend_XmlRpc_Server_Exception('Calling parameters do not match signature', 623);
}

Just comment it out

/*if (!$matched) {
     #require_once 'Zend/XmlRpc/Server/Exception.php';
     throw new Zend_XmlRpc_Server_Exception('Calling parameters do not match signature', 623);
 }*/

Now xmlrpc connection will work perfectly.

Thanks