Document :

ITU-T�SG15� (Study Period 2009)� Contribution� 2099

Title :

Analysis and comparison on PTN ring protection proposals

Date :

2012-08-26

Source :

China Mobile Communications Corporation , Huawei Technologies Co. Ltd. , ZTE Corporation

AI/Question :

Q9/15

Meeting :

2012-09-10

Access :

Restricted to TIES users�[ITU-T]