There is one option sip-call-retain-timeout which looks like have the similar functionality as the TDM TServers option call-delete-delay-msec. It should retain the call in SIP server memory for configured milliseconds. But the question is, for what purpose and in which situations do you want to use this? If for reporting purpose I am quite skeptical that the TServer delay option, if it works at all, would be taken in consideration by GIM ETL during data transfer from ICON to GIM what so ever. Infomart has its own mechanism for KVP attached after call ended which must be delivered via user event. The timeout option is then “user-event-data-timeout”.