| 摘要 |
Embodiments of the invention relate to the technical field of communication services. The disclosure relates to a method, system, and apparatus for playing tones. An embodiment of the disclosure provides a method for playing a CRBT, including: receiving, by a CRBT center, a call request from a caller, and obtaining a group identification from a standard compliant group management component; obtaining a CRBT for the caller based on the group identification, and playing the CRBT. The disclosure also provides a method for playing a CRT, including: receiving, by a CRT center, a call request from a caller, and obtaining a group identification from a standard compliant group management component; obtaining a CRT for the callee based on the group identification, and playing the CRT. Also disclosed are systems and an apparatuses corresponding to the above methods. The methods, systems, and apparatuses for playing tones according to the embodiments of the invention may implement CRBT and CRT services in the PS domain, and allows other systems to share the group information defined for the CRBT and CRT. |
