Common use of MSC Clause in Contracts

MSC. 10.9 In accordance with Exhibit C, multiple MSCs must be able to be networked to form Soft Hand-off cluster allowing any BTS served by MSC-A to enter soft hand-off with any BTS served by MSC-B where MSC-A and MSC-B are from different vendors (IS-41). ATTACHMENT 1 TO EXHIBIT D.MSC North American Market BHCA Rating The system capacity for Autoplex 1000(R) North American markets is 200,000 BHCA based on the following assumptions: - Single MSC system EC - Release 9.0 (or later) - 3B21 Duplex ECP - OMP with Release 9.0 (or later) software - A single 5ESS-2000 Switch DCS carrying 100% of system traffic with a hand-off rate of 1.6 Soft HO/BHCA or less and 0.2 Hard HO/BHCA or less - 2.5 Autonomous Registrations (AR) per BHCA - Short Message per BHCA <10% - Voice Mail/CF/CW on 2.5% of BHCA - Available paging capacity in CDMA is approximately 51 pages/second - Maximum of two page messages per page attempt - Maximum "No Page Response" rate is 50% - Mobile terminated call attempts are 32% of BHCA or lower - Mobile terminated calls answered is 10% - Mobile originated calls are 68% of BHCA - Mobile originated answered calls are 55% of BHCA - Mobile to mobile calls are 10% of BHCA - Mobile busies is 3% or higher of BHCA Mobile originations limited to 18,000 calls/cell/hour on the access channel - BHCA per subscriber is 1.0 - Average Call Holding Time (ACHT) is 90 seconds. EXHIBIT D.NM LUCENT TECHNOLOGIES D.NM