Unlike in D&D, d20 Modern characters do not get initial languages based on their Int bonus. Instead, you get to spend skill points. The relevant skills are Speak Language and Read/Write Language, at the cost of 1 skill point each per language.
That said, ITAP technology allows its agents to temporarily gain some proficiency a number of languages equal to their Int bonus. This manner of learning languages has some drawbacks, however. First, this only provides the ability to speak the language, not read or write it. Second, the language will come across as less than fluent. There may be an accent, some hesitancy, or a lacking vocabulary. The result is a -2 penalty to any Bluff, Diplomacy, Disguise, or Gather Information skill checks made while using this language.