ICD Group to ICD Group Overflow Feature

Current Spec

	All ext set to immediate ring All ext ring upon call arrival		All ext set to immediate ring Only 105 & 106 ring upon intercept arrival

Desired Spec

• In current state it is possible to make all extensions ring in group B by enabling call waiting from CO, however this is not always desirable as in actual customer situation detailed below:-

• Customer wishes for main number to be DDI to his extension only (Ext 202).
• If busy then FWD to 201. (This is achieved by setting Idle station hunt group ).
• Ext 202 has FWD N/A set to ICD Group. However ext 202 will not ring when call is forwarded.

Problem : If enable call waiting from CO which will make ext 202 ring in group, then extension will never be busy so no FWD busy function!