Subject: [AVT] comments on RFC2833biscas-02

From: "Aleksandar Lebl" <[email-masked]>
Date: Thu, 29 Jun 2006 07:37:43 +0200

1. First phrase in subsection  2.3.1. should be: 

R2 line signals may be analog, one-bit digital using the A bit, or digital using both A and B bits.

instead: 

R2 line signals may be analog, one-bit digital using the A bit in the 16th channel, or digital using both A and B bits.

Explanation: A and B bits may belong to robbed bit signalling (T1) not only to the 16th channel (E1).

2. Subsection 2.3.2., Tables 4. i 5. According to ITU-T Reccomendation Q.440. there exist forward and backward signals.

Forward signals consist of two frequencies belonging to the upper part of speech band. Backward signals consist of two

frequencies belonging to the lower part of speech band. We think that terms "upper frequencies" and "lower frequencies"

in Tables 4 and 5 are not correctly used. In our opinion in Tables 4 and 5 the words "forward frequencies"  and "backward

frequencies" should be used.

                                                                                    Aleksandar Lebl and

                                                                                    Zarko Markov
_______________________________________________
Audio/Video Transport Working Group
[email-masked]
https://www1.ietf.org/mailman/listinfo/avt