北电网络日前成功地完成了在中国联通浙江分公司的１xRTT试验网上的第二阶段试验。二期试验的２７项内容主要包括核心网测试、９５A和１x混合网测试以及１x语音业务容量和数据业务带宽。此前北电已成功完成第一期的８０多项试验。北电网络拥有平滑的CDMA演进方案（IS－９５→１ Nortel Networks has successfully completed the second phase of the test on the 1xRTT trial network at China Unicom’s Zhejiang branch. The second phase of the 27 tests include core network testing, 95A and 1x hybrid network testing and 1x voice service capacity and data service bandwidth. Earlier Nortel has successfully completed the first phase of more than 80 trials. Nortel Networks has a smooth CDMA evolution plan (IS-95 → 1