From:Digium

Abot Tanaw uses dedicated videoconferencing hardware setup, similar to that found in businesses, to deliver high-quality video to overseas Filipino workers who wish to communicate with their families on a regular basis. Abot Tanaw curbs the cost of communication by taking full advantage of an Asterisk-based IP PBX server to provide the video calls at no cost to users.

The city of Taguig is the first in the Philippines to implement a unified citywide telecommunications system. Communication is now available 24/7, despite tropical rains and typhoons that previously were a threat to the entire telephone system of Taguig's City Hall. With newly established centralized hotlines, calls are answered and filtered to the proper department by trained staff, instead of interrupting city workers while being passed from one department to another. Taguig now has VoIP telephone systems in over 73 sites, and the implementation has already brought a 50% decrease in city costs while doubling city workers' productivity.