PT. ERICSSON INDONESIA Wisma Pondok Indah 10th Floor Jl. Sultan Iskandar Muda V TA Jakarta 12310 - Indonesia Telp : (62)21-7692222, Fax : (62)21-7501853
PT. SAMPOERNA TELEKOMUNIKASI INDONESIA Sampoerna Strategic Square, Tower A, Floor 20-21th Jl. Jenderal Sudirman Kav. 45-46 Jakarta 12930 - Indonesia Telp : (62)21-5770138, Fax : (62)21-5770136
PT. PROFESIONAL TELEKOMUNIKASI INDONESIA Gedung Artha Graha 16th Floor Jl. Jenderal Sudirman Kav. 52-53 Jakarta - Indonesia Telp : (62)21-5151215, Fax : (62)21-51400990
PT. DIAN SWASTIKA SENTOSA Jl. Haji Agus Salim No. 45 Menteng Jakarta Pusat 10340 - Indonesia Telp : (62)21-31922255, Fax : (62)21-3162519
