/mcpDevice is video and TIP capable. Device supports three screens. Contact: sip:1234@10.1.1.1;…;video;x-cisco-multiple-screen=3;x-cisco-tip The system will also monitor the SDP exchange involved in offer-answer with the video endpoints. When a video stream is established, Unified Communications Manager informs CTI applications about the stream such as IP address, port, codec, content-type (main/presentation), and maximum bit rate of the video stream. Similarly, when the video stream is broken down, Unified Communications Manager indicates that to the CTI application. This allows CTI applications to monitor the active video streams for a particular call. iX Channel Support IX provides a simple, reliable, and secure channel that multiple application layer protocols can be multiplexed over. The transport used for the IX channel is UDP. To provide a reliable channel, IX utilizes UDT over UDP. The IX channel can be negotiated and set up using the Session Description Protocol (SDP) and the Offer/Answer model. The IX channel extends SDP to support new attributes mapping the protocols to be multiplexed. IX support applies strictly to SIP devices. Both SIP Trunk and SIP Line interfaces are fully supported. Sample IX application mline in SDP m=application 12345 UDP/UDT/IX * b=as:64 a=ixmap:1 XCCP a=ixmap:2 MSCP a=connection:new a=setup:actpass IX is not yet a public standard or draft. It’s currently supported by Cisco devices. Both sides of a call have to support IX for IX to be negotiated and work. Unified Communications Manager does not terminate the IX protocol. For IX to work, all SIP Interfaces for the call must have IX enabled or support IX. IX capable Cisco endpoints indicate IX capability during registration, using a new optionsInd tag, <ix>, in the REGISTER message. If Unified CM is also iX capable, it will add the <ix> tag in optionsInd in the 200OK response message. If IX cannot be negotiated, for example, when one side doesn’t support IX, the IX application media line is rejected and the port number is set to 0. m=application 0 UDP/UDT/IX * < ---- Inactive channel a=setup:actpass a=ixmap:0 ping a=ixmap:2 xccp a=ixmap:3 rmultisitectrl isFocus Support With the help of new implementation, any line device which is capable of local mixing should send an 'isfocus' parameter in the Contact header so the MOH will be suppressed when one of the participants puts the call on hold during a conference. Configurable NonPreemptable Numbers In Release 10.0 the new feature, Configurable NonPreemptable Numbers is introduced which affects the preemption behavior of the SIP endpoints. If the feature is enabled at the service parameter level, and the SIP endpoint had more than one call on the phone, then the Unified Communications Manager does not present SIP Line Messaging Guide (Standard Edition) for Cisco Unified Communications Manager 43 SIP Standard Line Interface iX Channel Support