ITU-T Rec. E.422 – OBSERVATIONS ON INTERNATIONAL OUTGOING TELEPHONE CALLS FOR QUALITY OF SERVICE
1 Objectives concerning Table 1/E.422 and Table 2/E.422
2 Manual or semi-automatic observations (Table 1/E.422)
3 Comments concerning the use of Table 1/E.422
4 How to fill in Table 1/E.422
5 Automatic observations (Table 2/E.422)
6 Comments concerning the use of Table 2/E.422
7 How to fill in Table 2/E.422