Document :

ITU-T SG 15  (Study Period 2017)  Temporary Document  257-GEN

Title :

LS/i about SG2 work on international calling party number delivery (E.157)

Date :

2019-03-12

Source :

ITU-T Study Group 2

AI/Question :

QALL/12

Access :

Restricted to TIES users [ITU-T]