The four companies joined OIPF at its recent meeting in Santa Clara, USA.
“We are delighted to have these additional members,” said Yun Chao Hu, OIPF chair.
He added: “This latest membership announcement strengthens the existing representation from the network equipment and content security industries, and expands the scope of the Forum to include the two most well-known players in the digital audio business.”
OIPF members work together to develop open, end-to-end specifications for IPTV based on existing technologies and open standards.
Members include Alcatel Lucent, the BBC, Ericsson, T-Mobile, Intel, LG, Panasonic, Philips, Samsung, Telefonica, Toshiba, and ZTE.