| 摘要 |
<p>Methods and apparatus are provided for performing a trace session between a first user equipment (UE) and a second UE in a telecommunications network including an IMS network. A trace session initiator activates the trace session with an activation request message or a SI P I NVITE message including trace settings comprising informational elements describing the trace session. The activation message may be converted into the SIP I NVITE message and sent towards the first and/or the second U E. The SI P I NVITE message may include trace settings as extensible mark up language XML informational elements within the body of the SIP INVITE request message and/or as request Uniform Resource Identifier informational elements within the SI P I NVITE request message. Network elements in the communications path between the UEs are configured to detect the trace session by detecting the trace settings in the SIP I NVITE request message and act accordingly. This provides the advantages of reduced network load in the network and network elements and removal of network configuration as all the required information is included in the signaling.</p> |
