Skype Connect™ provides connectivity between your business and the Skype community.
MyPBX helps you to connect to Skype via Skype Connect. By adding Skype Connect to MyPBX, your business could save on your communication costs with little or no additional upgrades required. Once the Skype SIP trunk is registered on MyPBX, you are able to make and receive calls on MyPBX through the Skype SIP trunk.
More details please refer the below link: