RE: pktcSigDevToneDbLevel modifying default value and range-Sig mib draft-11

Satish,

This proposal looks reasonable given the fact that POTS specification
seems to not require a full existing range of (-250, -30). The proposed
default value is also reasonable.

Eugene.

-----Original Message-----
From: Kumar, Satish [mailto:[email protected]]=20
Sent: Thursday, October 12, 2006 8:37 AM
To: Ipcdn (E-mail)
Cc: Sanchez, Mauricio; Freyman Phillip-FPF300; Sumanth Channabasappa
Subject: [ipcdn] pktcSigDevToneDbLevel modifying default value and
range-Sig mib draft-11

Hi,
        The MIB pktcSigDevToneDbLevel defined in draft-11 has range
(-250..-30) with default value as -40dBm. Normal dial tone is at -13dB
(means -130dBm). Current default value is a too loud signal. I would
recommend to change the defailt to -120 along with the range to
(-250..-110)

MIB description from:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-ipcdn-pktc-signaling-11.tx
t

pktcSigDevToneDbLevel    OBJECT-TYPE
         SYNTAX       TenthdBm (-250..-30)
         UNITS        "dBm"=20
         MAX-ACCESS   read-only=20
         STATUS       current=20
         DESCRIPTION=20
             "This MIB Object contains the decibel level for each

              analog signal (tone) that is locally generated =20
              (versus in band supervisory tones) and sourced to =20
              the a-b terminals (TE connection point). Each tone =20
              in itself may consist of multiple frequencies as =20
              defined by the MIB table 'pktcSigDevMultiFreqToneTable'.
   =20
              This MIB Object MUST reflect the desired level at =20
              the Telco (POTS) a-b (T/R) terminals including the =20
              affect of any MTA receiver gain (loss).  This is required=20
              so that locally generated tones are consistent with=20
              remotely generated in band tones at the a-b terminals,=20
              consistent with user expectations.
      =20
              This MIB Object must be set for each tone.
              When tones are formed by combining multi-frequencies,
              the level of each frequency shall be set so as to result
              in the tone level specified in this object at the a-b
              (T/R) terminals.
  =20
              The wide range of levels for this Object is required =20
              to provide signal generator levels across the wide =20
              range of gains (loss) - but does not imply the entire=20
              range is to be achievable given the range of gains (loss)=20
              in the MTA."
       DEFVAL { -40 }=20
       ::=3D{ pktcSigDevMultiFreqToneEntry 8}

Comments please...

Thx, Satish=20


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