| 摘要 |
<p>A system comprises a proxy call state control function (16; 26; 36) in operable connection with a policy and charging rules function (172; 272; 372). The proxy call state control function (16; 26; 36) is configured to control a communication session signaling, to detect (4) that the communication session signaling relates to an ongoing service, and to indicate (5) the ongoing service to the policy and charging rules function (172; 272; 372). The policy and charging rules function (172; 272; 372) is configured to check (6a) a request for communication resources for information about an ongoing service, and to prefer (6b) authorization of communication resources for an ongoing service over authorization of communication resources for a new service.</p> |
