Motorola has joined the Microsoft Mediaroom Interoperability and Qualification Lab (IQ Lab) for digital video encoders, which will allow the two to assure that the former’s encoders will work in deployments of the latter’s Mediaroom.

Motorola announced its participation after having already submitted its SE-5100 High Definition MPEG-4 AVC encoder for testing.

“Microsoft Mediaroom’s interoperability with Motorola’s MPEG-4 encoder means that our global service provider customers will find it easier and faster to deliver advanced connected TV services,” said Christine Heckart, general manager of marketing for the Microsoft TV business at Microsoft. “As a result, more consumers will benefit from a rich and secure TV experience, with excellent video quality and smoothly running applications on their set top boxes.”

Both companies supply AT&T’s U-verse triple play service.