ERICSSON TELECOMMUNICATIONS, INC.

Information and Communications Technology

7/F Octagon Building, San Miguel Ave., Ortigas Center, Pasig City, Metro Manila Pasig Metro Manila

Tel : (02) 637-1600

Fax : (02) 637-6160

ETSI TECHNOLOGIES, INC. (FOR. ELECTRONIC TELEPHONE SYSTEM IDUSTRIES, INC.)

Information and Communications Technology

Mercedes Business Park, Mercedes Avenue, Pasig City Pasig Metro Manila

Tel : (02) 634-54-77

Fax : (02) 643-20-33

ALTIGEN PHILIPPINES

Telecommunications

8101 Pearl Plaza, Suite 5D Lot 5 & 6 Pearl Drive Ortigas Center Pasig City Metro Manila

Tel : (632) 9100080-81

Fax : (632) 6354450

GLOBAL STRIDE (FORMERLY WEBSERV ASIA CORP.)

Information and Communications Technology

c/o Eastwood City Cyberpark, Libis, Quezon City Quezon City Metro Manila

Tel : c/o 638-8774 / 633-0637

eLink Web Designs and Programing

Information and Communications Technology

First Metro Strata Building Nueve De Pebrero Street Mandaluyong Mandaluyong

Tel : 5313854

SMART COMMUNICATIONS, INC.

Information and Communications Technology

27F., Smart Tower, 6799 Ayala Avenue Makati City Metro Manila

Tel : (632) 816-8877

Fax : (632) 511-2470

DIAVOX NETWORK, INC.

Information and Communications Technology

27-6 Burgundy Corp Tower, Sen Gil Puyat Ave., Makati City Metro Manila

Tel : (632) 888-4974 / 888-4974

Fax : (632) 888-5067/ 888-5082

EPLDT

Information and Communications Technology

3/F, 5/F, 12/F L.V. Locsin Bldg., Makati Ave. cor Ayala Ave., Makati City Metro Manila

Tel : (632) 885-0000

Fax : (632) 864-3112

ePLDT VENTUS INCOPORATED

Information and Communications Technology

Mezzanine Level, PLDT Ramon Cojuang Makati Ave. cor Dela Rosa Sts., San Makati City Metro Manila

Tel : 816-8812

Fax : 892-7066

PLDT BUSINESS SOLUTIONS

Information and Communications Technology

PLDT 5F Ramon Cojuangco Bldg. Makati Avenue Makati City Metro Manila

Tel : (632) 874-7474 / 1-800-100-249765

Fax : (632) 844-6654 / 1-800-1-888-0009