| Standard ID | YD/T 1511-2007 (YD/T1511-2007) |
| Description (Translated English) | Technical Specification for 2GHz TD-SCDMA/WCDMA CS Video Telephony Service |
| Sector / Industry | Telecommunication Industry Standard (Recommended) |
| Classification of Chinese Standard | M40 |
| Classification of International Standard | 33.050.30 |
| Word Count Estimation | 14,136 |
| Date of Issue | 2007-05-16 |
| Date of Implementation | 2007-05-16 |
| Drafting Organization | MIIT Telecommunications Research Academy |
| Administrative Organization | China Communications Standards Association |
| Regulation (derived from) | MIIT Science [2007] No. 238 |
| Summary | This standard specifies the TD-SCDMA/WCDMA digital cellular mobile communication network circuit domain business overall visual telephone service features, functions and protocol structure, media codecs and reuse, business processes, authentication, accounting and statistics, service quality and interrupt requirements and so on. This standard applies to our use of 2GHz TD-SCDMA/WCDMA digital cellular mobile communication network system and circuit domain videophone business-related equipment development, production and procurement. |