Meanwhile, Heathrow Airport has been closed to all incoming flights that are not already in the air, while several outbound services have been cancelled.

BBC: NEWS | UK | Northern Ireland | Security increased at NI airports

Internet services last week, an analysis of outbound text messages shows that mobile messaging services are still largely blocked.

FORBES: Chart: Egyptian Text Messages Still Largely Blocked

The company will also announce next week a 60-day free trial of the Red Hat Network, available through www.redhat.com , that will include access to directory services, outbound user notifications, an automated stream of open-source software, and access to community support forums.

CNN: Red Hat unveils new support network for users

This can be your inbound 800 number, your outbound sales calls, or your product fulfillment services.

FORBES: Six Fantastic Tech Tools For Your Business

Comcast this morning announced a new suite of free services for Xfinity voice customers, including outbound calling over WiFi.

FORBES: Comcast Adds Free WiFi Calls For Xfinity Voice Customers