The invention relates to a communication system comprising:—a master handheld apparatus (100) comprising a first near field communication device a first wireless communication device, a current session being held by the master handheld apparatus (100), a slave handheld apparatus (130) comprising a second near field communication device and a second wireless communication device, the first and second near field communication devices being adapted to exchange identification information when they are held next to each other so as to initiate a communication link (140) between the first and second wireless communication devices, the first and second wireless communication devices then enabling the slave handheld apparatus (130) to join the current session through the communication link (140).