/mcpFor details on the interface changes, see Cisco Unified JTAPI Extensions, on page 249 To view the message flow for Modifying Calling Number, see Message Sequence Charts, on page 761. Multi-fork Recording using CUBE Media Proxy Server Prior to Cisco Unified Communications Manager, Release 12.5(1), the Unified Communications Manager supported only single recorder for a call. With the Cisco Unified Communications Manager, Release 12.5(1), the Unified Communications Manager supports Multi-forking for Call Recording feature. The Unified Communications Manager is connected to CUBE Media Proxy server which is connected to multiple recorders. The JTAPI interface is enhanced to get the details of multiple recorders in case of Multi-Forking recording through CUBE Media Proxy server. Backward Compatibility This feature is backward compatible. JTAPI supports the current APIs. Multilevel Precedence and Preemption Support Cisco Unified Communications Manager enables the use of supplementary services by phones that are configured for Multilevel Precedence and Preemption (MLPP). Cisco Unified Communications Manager does this by maintaining the precedence level for calls. JTAPI does not provide the precedence level of applications. Note Multiple Calls Per DN Multiple calls per DN represent the ability to support multiple calls on a line (DN) and the features operation on these calls. Prior to Cisco Unified Communications ManagerRelease4.0(1), the system supported a maximum of only two calls. Cisco JTAPI now supports multiple calls per line, which allows multiple calls on the same line and feature operation on that line. No interface or message flow changes occurred for Multiple Calls Per DN. Native Queuing It is very common in a Cisco Unified CM deployment that a hunt pilot has more calls distributed through the call distribution feature than its hunt members can handle at any given time. Native Queuing feature holds the calls in a queue until they are answered. When a hunt member is available, the call is removed from the queue and offerred to the hunt member. To enable this feature, the Cisco Unified CM administrator needs to enable the check box Queue Calls in Queuing section of the Hunt Pilot configuration page. Following settings are available under Native Queuing feature configuration: Cisco Unified JTAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs 125 Features Supported by Cisco Unified JTAPI Multi-fork Recording using CUBE Media Proxy Server