Subject: [AVT] Draft RFC 2833bis(3)

From: "Zarko Markov" <[email-masked]>
Date: Fri, 26 Sep 2003 07:44:30 +0200

Dear AVT WG,

we have one suggestion about RFC 2833bis.

Latest draft version of RFC2833bis 
(draft-ietf-avt-rfc2833bis-03.txt, RFC2833bis03) 
enables the packet transfer of R1 and R2 
interexchange signals. Both R1 and R2 signaling 
systems are composed of line and (inter)register parts. 
(It is necessary to distinguish the line R1 and R2 signals 
from user line signals described in RFC2833bis03, 
section 3.12.) Line R1 and R2 signals may take 
analog and/or digital form. Analog line signals 
are defined in ITU-T Recommendations Q.311. and Q.312. 
as signals at frequency 2600Hz (R1) and in 
ITU-T Recommendation Q.414. as signals at frequency 3825Hz (R2).
RFC2833bis03 does not propose the packet 
transfer of analog R1 and R2 line signals as trunk events. 

For sake of completeness, it is necessary to define 
event codes for line R1 signal (2600Hz) and 
for line R2 signal (3825Hz) in Table 9: Trunk events. 

Best regards,    

Zarko Markov ([email-masked]) and 
Dejan Jovanovic ([email-masked])

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