Hello Client
I have check your post regarding calling server,
I have expertise on following technologies, CMS & frameworks,
PHP, Yii, Zend, Codeigniter Cakephp, Wordpress, Opencart , Android, HTML Responsive Design.
also having knowledge of VOIP, WebRTC and Third party applications for calling server.
I also have upper hand on nodeJS, ExpressJS, MongoDB, AngularJS.
Me and my team of experts are ready to assist in your given task.
Looking for positive response from you.
Thanks
AVRocker