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ITU-T J.128 (10/2008)

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Set-top gateway specification for transmission systems for interactive cable television services
Recommendation ITU-T J.128 introduces additional requirements on a DOCSIS cable modem termination system and DOCSIS cable modem (Annex B of Recommendation ITU-T J.112 and Recommendation ITU-T J.122) to support the configuration and transport of a class of service known as "Out-Of-Band (OOB) messaging" between a set-top controller (or application server) and the customer premises equipment (CPE). In general, the CPE is intended to be a digital set-top device, but may include other CPE devices, such as residential gateways or other electronic equipment.
Series title: J series: Cable networks and transmission of television, sound programme and other multimedia signals
  J.110-J.129: Interactive systems for digital television distribution (DOCSIS first and second generations)
Approval date: 2008-10-29
Provisional name:J.dsg
Approval process:AAP
Status: In force
Maintenance responsibility: ITU-T Study Group 9
Further details: Patent statement(s)
Development history
Ed. ITU-T Recommendation Status Summary Table of Contents Download
2 J.128 (10/2008) In force
1 J.128 (11/2005) Superseded