Patent ID: 7983406

Claim:
A method comprising: establishing, at a teleconference bridge, a first teleconference call that involves at least a first endpoint assigned to a first port, a second endpoint assigned to a second port, and a third endpoint assigned to a third port, wherein first endpoint is capable of having a telephone call independently of the teleconference bridge, and wherein the second endpoint and the third endpoint are acoustically isolated from each other; receiving, at the teleconference bridge, a first receive audio signal s 1 from the first endpoint via the first port, a second receive audio signal s 2 from the second endpoint via the second port, and a third receive audio signal s 3 from the third endpoint via the third port; determining whether to transmit any audio signal that is based on at least one of the signal s 2 and the signal s 3 to the first endpoint, based on i) the terminal type of the first endpoint, ii) whether the first endpoint is acoustically collocated with the second endpoint, and iii) whether the first endpoint is acoustically collocated with the third endpoint; and transmitting a first transmit audio signal x 1 to the third endpoint, wherein the signal x 1 is based on at least one of the signal s 1 and the signal s 2 .