10 Operation and Maintenance..................................................................................................151
A How to Obtain Help.................................................................................................................153
A.1 Preparations for Contacting Huawei..........................................................................................................................153
A.1.2 Making Debugging Preparations............................................................................................................................ 153
A.2 How to Use the Document.........................................................................................................................................153
A.3 How to Obtain Help from Website............................................................................................................................ 154
A.4 Ways to Contact Huawei............................................................................................................................................154
B Glossary...................................................................................................................................... 155
C Acronyms and Abbreviations................................................................................................ 156