Overview
Color Ring Back Tone (CRBT) is a new value-added service that allows mobile phone subscribers to customize their own ring-back tones. If a subscriber succeeds in requesting this service, his/her mobile phone, when called, will no longer respond with monotonous beeping ring-back tones but with some humanized response tones such as a wonderful music melody or a caller’s warm greeting.
ZTE’s CRBT solution brand name “ZTE MyRing” is a proven personalized service in the major markets such as in China, Singapore, Romania, India, Pakistan & Africa. It is rich in features, provides easy to use interface and management for operators, content providers and users.
Introduction to ZTE MyRing

ZTE MyRing Networking Solution
ZTE MyRing system consists of two parts: centralized service control and processing, and distributed service access and tone playing.
For service control and processing, CRBT Server, Interface Message Processor (IMP), WWW Server, Signaling Interface Unit (SIU), CDR Server, and OAM Console are installed, generally within the same LAN.
Service access and tone playing, also known as IP player, contains Voice Servers and IPs. The servers may be in a different LAN from CRBT center equipments. When multiple IPs are provided, each IP is configured with a tone server which is within the same LAN as the IP. Through signaling links, IP is connected to the CRBT SERVER, through TCP/IP connection the ring back tones are loaded to the voice server.
CRBT center is connected to the MSC/Switch with ISUP adopted to implement user connection over voice paths. Besides, ZTE MyRing system provides abundant interfaces to enable the seamless integration with existing external system. Via TCP/IP links, it is accessed to the Internet to enable connection to Prepaid system, Short Message System, Billing System, Provisioning System and third-party service providers (SP). The SPs then provide more diversified personalized ring back tones to the users.
ZTE MyRing (ZXIN10-CRBT) is designed to meet today’s need with its rich services and applications, providing scalability & flexibility to scale for the future.
It supports wire and wireless networks simultaneously to provide unified CRBT service to the customers in different networks.
Based on the service requirements, ZTE provides the above integrated network solution to meet and satisfy CRBT functions. The physical equipments of the CRBT system are interconnected as follows:

ZTE MyRing System Architecture
The complete CRBT Player system is composed of CRBT server, Signal Interface Unit(SIU), Interface Message Processor, Web Server, CDR Server, Intelligent Peripheral (IP), Voice server, Ethernet switch and OAM Console etc.
Features
ZTE MyRing provides diversified Features including but not limited to the following:
- Basic Features
- Personal Ring Tone Library
- Default Ring Back Tone
- Caller based RBT
- Caller Number Group based RBT
- Time based RBT
- Blacklist
- Random/Sequence RBT Play
- RBT Duplication
- RBT Presentation
- Advanced Features
- Self-recording RBT
- RBT Service Donation
- Special Date RBT
- One Key Purchase
- Mixed Tone
- Free Choice RBT
- Other Services
- Caller Based RBT
- Corporation RBT
Benefits
CRBT service is a voice based Value Added Service, it brings the end user a most characteristic—Amusement. And for the corporation or SME (Small Medium Enterprise), they may find another approach to present themselves or their products.
CRBT service is easy to use and the customer range is wide, all of these enable it becoming another successful VAS after SMS which can bring revenue to the operators. This service will also increase the revenue of voice access and SMS, etc.
Its flexible business model can reduce the investment risk for the operators.
Future of ZTE MyRing
The service development relies on the core network development. As more and more carriers build NGN networks, the MyRing system migrates to the convergence of narrow and broadband services. Besides the narrow band based CRBT service as introduced above, in broadband networks ZTE MyRing system can also provide more entertaining Multimedia service, like Multi Media CRBT and Color Show service.