Method of transmitting data between communication equipments connected to a communication infrastructure

A method of transmitting data between communication equipments, wherein:

• said communication equipments include communication equipments using a first data coding format, and communication equipments using a second data coding format;
• said communication equipments communicate via a common communication infrastructure, which (1) comprises transcoders and (2) uses said second data coding format;
• said transcoders convert data between said first and said second data coding format;
• and
• a respective one of said transcoders is provided in a respective vicinity of each of said communication equipments using said first data coding format;
• said method comprising the steps of:
• a) determining whether use of one of said transcoders is required, on a transmission path between communicating ones of said communicating equipments, according to the following rules:
• a-1) if data is to be communicated only between said communication equipments using said second data coding format, then use of one of said transcoders is not required;
• a-2) if data is to be communicated between a communicating one of said communication equipments using said first data coding format and a another communicating one of said communication equipments using said second data coding format, then use of one of said transcoders is required;
• b) if use of one of said transcoders is required, activating only a respective one of said transcoders which is nearest to said communicating one of said communication equipments using said first data coding format;
• and
• c) conveying said data to be transmitted to and from said communicating one of said communication equipments using said first data coding format via said activated respective one of said transcoders.