It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
A brief intro on KOL TELECOM:
KOL TELECOM SERVICES LLC. is a USA-based and D&B registered provider of international wholesale as well as retail VOIP solutions. KOL TELECOM currently provides services to more than 100 international long distance carrie