Hi Abhishek,
Hope all is well buddy
The individual and system settings are shown below;
Party Entrance Tone and Barge, cBarge, or Single Button Barge
With the party entrance tone feature, a tone plays on the phone when a basic call changes to a multiparty call; that is, when a basic call changes to a barged call, cBarged call, ad hoc conference, meet-me conference, or a joined call. In addition, a different tone plays when a party leaves the multiparty call.
If the controlling device, that is, the originator of the multiparty call has a built-in bridge, the tone gets played to all parties if you configured party tone entrance for the controlling device. When the controlling device leaves the call, Cisco Unified Communications Manager identifies whether another device on the call can play the tone; if another device on the call can play the tone, Cisco Unified Communications Manager plays the tone. If the controlling device cannot play the tone, Cisco Unified Communications Manager does not play the tone even if you enable the party entrance tone feature.
When a barge call gets created, the party entrance tone configuration of the barge target that shares the line with the barge initiator determines whether Cisco Unified Communications Manager plays the party entrance tone.
When a cBarge call gets created, the party entrance tone configuration of the cBarge target that shares the line with the cBarge initiator determines whether Cisco Unified Communications Manager plays the party entrance tone. However, if the call for the target is an existing ad hoc conference that is in the same cluster, the party entrance tone configuration for the ad hoc conference controller determines whether Cisco Unified Communications Manager plays the tone.
To use the party entrance feature, ensure that you turned the privacy feature off for the devices and ensure that the controlling device for the multiparty call has a built-in bridge. In addition, either configure the Party Entrance Tone service parameter, which supports the Cisco CallManager service and the entire cluster, or configure the Party Entrance Tone setting per directory number in the Directory Number Configuration window (Call Routing > Directory Number). For information on the service parameter, click the question-mark button in the Service Parameter window. For information on the Party Entrance Tone setting in the Directory Number Configuration window, refer to the "Directory Number Configuration Settings" section in the Cisco Unified Communications Manager Administration Guide.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/7_1_2/ccmfeat/fsbarge.html#wp1094768
Cheers!
Rob
"Everything is broken" - Bob Dylan
