Document :

ITU-T SG 11  (Study Period 2017)  Contribution  27

Title :

Proposal for amendment of I.570 for enhancement of Calling Party Number security

Date :

2017-01-23

Source :

China Telecommunications Corporation

AI/Question :

Q2/11

Meeting :

2017-02-06

Observation :

NOTE: this contribution is submitted to Q2/11 and Q2/13

Access :

Restricted to TIES users [ITU-T]