| 摘要 |
The invention provides management of alternative services in a communications system (1). A user equipment (300) requests a primary service at the communications network (10) during the setup of a communications session. In addition, at least one possible alternative service to use if the primary service is unavailable is suggested. Radio performance and signaling quality of the bearers of the primary and alternative service(s) are monitored. If the quality deteriorates, the network (10) issues a service change to a less quality demanding alternative service. If the quality subsequently improves, the network (10) can issue a fallback reversion, thus, changing service to a more preferred service, typically the requested primary service.
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