By default, the Security Module network firewall restricts access to all but those interfaces and ports defined in the Avaya Aura® Session Manager: Port Matrix documentation that is available when you log in to the support website and use the InSite Knowledge Management Database at http://support.avaya.com.

However, the pinhole mechanism permits applications to make on-demand requests to open or close temporary pinholes through the network firewall.

Failure of an application to open a pinhole indicates an internal Session Manager problem. If the problem persists, contact Avaya Technical Support.