PHILIPPINE LONG DISTANCE TELEPHONE CO.

Services - Telecommunications

SAN VICENTE ST. SAN VICENTE San Pedro Laguna

Tel : +6328477196

BAYAN TELECOMMUNICATIONS INC

Telephone Co

3RD FLR ROOM 36 CEC BLDG CROSSING BARANGAY 1 Calamba Laguna

TELECOMMUNICATIONS & COMPUTER TECHNOLOGIES, INC. (TCTI)

Information and Communications Technology

Florida Florida, Mandaluyong City CITY OF MANDALUYONG NCR

Tel : 02 726 5353 / 02 723 0375

Fax : 02 721 8133

PHILIPPINE LONG DISTANCE TELEPHONE COMPANY

Telecommunications

Ramon Cojuangco Bldg., Makati Ave. Makati City, Metro Manila 1200

Tel : 816-8024;816-8121;816-8711;816-8097

Fax : 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

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

PHILIPPINE TELEGRAPH AND TELEPHONE CORPORATION

TELECOMMUNICATIONS

6/F Spirit of Communication Center106 Carlos Palanca Jr. St.Legaspi Village, Makati City

Tel : 698-2222

Fax : 894-1147

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

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

Telnovate Systems & Solutions

Telecom Products and Services

166 San Salvador St., Greenpark CITY OF PASIG Metro Manila

Tel : 02 645 0412

Fax : 02 645 9628