PHILIPPINE TELEGRAPH & TELEPHONE COMPANY (PT&T)

Information and Communications Technology

SJS Building Casino St., cor. South Superhighway Palanan, Makati City Makati Metro Manila

Tel : (02) 844-76-47 / 818-05-11

Fax : (02) 810-12-11 / 844-76-47

MAYON TELEPHONE CO, (MATELCO)

Information and Communications Technology

2nd Floor, Midland Plaza, M. Adriatico St. Ermita Manila Manila Metro Manila

Tel : (02) 522-02-74

Fax : (02) 722-84-64

PHILIPPINE LONG DISTANCE TELEPHONE COMPANY

Information and Communications Technology

Ramon Cojuangco Bldg., Makati Ave., Makati City Makati Metro Manila

Tel : (02) 816-8024;816-8121;816-8711;816-8097

Fax : (02) 810-7138;818-6800

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

IVMPHILS SERVICES & CONTRACTORS INC

ELECTRICAL CONTRACTOR & DESIGN

10-1 pilipino ave, teacher bliss, Balong Bato QUEZON CITY NCR

Tel : 922 891 7386

Fax : 02 3556321

LIBERTY TELECOMS HOLDINGS, INC.

TELECOMMUNICATIONS

Technology Centre2298 Pasong Tamo Ext., Makati City 1231

Tel : 813-0377; 815-9801/8831 to 35

Fax : 816-0049

LGK Solutions Philippines Inc.

Services

8 Rockwell, Hidalgo Drive MAKATI METRO MANILA

Tel : 63 998 851 1079

SieNet Communications

Communication Services

Unit 307, David Building 1 567 Shaw Blvd. Wack-Wack Mandaluyong City Metro Manila

Tel : +6327266836

Fax : +6327940473

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