Another remarkable year for Telkomsel with an achievement in maintaining its market share as the leader under very dynamic market conditions, marked by fierce competition and new interconnection tariffs by the Regulator.

In February, Telkomsel reached 50 million customers, consolidating its position as a trusted cellular operator in Indonesia. An application called "M-Komik" also launched in this month. By easy procedure and reasonable price, customers are able to enjoy reading comics through their mobile phones.

On April 1, Telkomsel introduced a new tariff structure for both postpaid and prepaid products. This is to comply with the new regulation on retail tariff structure as a result of the implementation of the new interconnection tariff.

Telkomsel introduced BlackBerry® Internet Service (BIS) for its prepaid users in May. The first prepaid BlackBerry® internet service in Asia with self provisioning method (SMS activation), in cooperation with Research In Motion (RIM).

Telkomsel launched Telkomsel Merah Putih (TMP) iin June which stands for Telkomsel MEnembus daeRAH Pedesaan, indUstri TerpencIl dan baHari, a coverage expansion program dedicated to providing service coverage in previously isolated regions.

simPATI Kangen for Indonesian workers in Macau was launched in September. A prepaid cellular communication solution dedicated to Indonesian workers working abroad. Telkomsel also launched T-Remittance for Indonesian workers in Hongkong. An innovation that allows Indonesian overseas workers to transfer money from abroad through their cellular phones.

In October, Telkomsel deployed country border networks in remote areas along the borders with Papua New Guinea and Timor Leste.

In December, Telkomsel became the first in Asia to deploy an eco-friendly power supply system by installing hydro fuel cell at a site in Medan. As part of Telkomsel’s overall eco-friendly effort, an initiative to find alternative energy for network operation was deploy by exploring  the application of solar cell, fuel cell, wind turbine and micro-hydro power systems.

Under the fierce competition in the industry, Telkomsel continued to introduce a new simPATI PeDe tariff plan and a new Talk Mania program.

At the end of 2008, Telkomsel reached 65.3 million subscribers

Telkomsel welcomes the year with its penetration strategy accross Indonesia and laid down the foundations to lead the way in the emergence of the so-called New Wave mobile telecommunications services in Indonesia.

In March, Telkomsel launched HALOhybrid (a new monthly plan of kartuHALO), offering customers the convenience of a postpaid card with the flexibility of a prepaid card. In the following month, an HSDPA (High Speed Downlink Packet Access) service called "Telkomsel FLASH" were launched.

In May, Telkomsel introduced "Telkomsel Pelindung Dataku" to provide back-up protection of all customers’ data bases. In the same month, Telkomsel also launched simPATI "Pake Banyak Gratis Pake Banyak" program. A customer retention program that provides free bonuses on every minimum three-minutes calls or six text messages during peak time (07.00-20.00).  

In June, launching of the innovative "Telkomsel You’ve Got Mail" as the first push-email service in Indonesia, capable of accessing up to five e-mail accounts.

Launching of "simPATI TalkMania" in September. Promotion for simPATI customers to make unrestricted phone calls, between 07.00-22.00, to all Telkomsel subscribers with a rate of only Rp 25,000 per day.

In November, Telkomsel launched T-CASH service that allowing Telkomsel customers to carry out financial transaction on their mobile phone. In December, Telkomsel launched "simPATI PeDe" that offers a simpler and more competitive tariff scheme of Rp 0.5 per second after 1st minute onwards for all Telkomsel users.

In May, Telkomsel exceeded the 7 million customer mark, followed in July by the 8 million^th, and in October the 9 million^th.