CS nya Provider Indosat

CS Indosat 
Via PSTN:
021 5438 8888
021 3000 3000
021 3011 1111

Via Matrix & StarOne:
Dial 111 (Free)

Via Mentari:
Dial 222 (Free)
Dial 100 (Rp.400,-/call)

Via IM3:
Dial 300 (Free)
Dial 100 (Rp. 400,-/call)

Fax: 021 5449501-06