The modularity construction of S12 has made it suitable for all kinds of applications like local, toll, GW, international exchange, SSP, STP, MSC and broadband exchange.

• 翻译：S12采用相同的模块化结构针对不同的应用，从集线器到市话/长话局、关口局、国际局、智能网SSP、七号信令STP、移动交换中心MSC和宽带交换机等等。