/**
* get Asterisk Voicemail data
*
* @return array
*/
protected function _getAsteriskVoicemail()
{
// create context
$context = $this->_getAsteriskContext();
$context = $this->_json->saveAsteriskContext($context->toArray());
return new Voipmanager_Model_Asterisk_Voicemail(array('context' => $context['name'], 'context_id' => $context['id'], 'fullname' => Tinebase_Record_Abstract::generateUID()), TRUE);
}