RE: [Megaco] Local/Remote descriptors and Permanent terminations

["Carl Rutter" <[e-mail]>]

You bring up a good point,
Is/Should Silient Suppression be tied to the TDM package or
SDP TDM, if in fact its really more applicable to the Ephemral side.
If no can think of a good reason then your right it would make more sense to
be in the SDP.
For now we could use 0 13 for G711 and long-term use the ATM approach for
SDP.
Trying to drive towards closure as we have a need to implement this.
Yea, the hairpinning would be in the MG Switch.
Comments?

Carl
  -----Original Message-----
  From: [e-mail] [mailto:[e-mail]]On Behalf Of
Chuong N. Nguyen
  Sent: Tuesday, April 02, 2002 8:05 PM
  Cc: [e-mail]
  Subject: Re: [Megaco] Local/Remote descriptors and Permanent terminations



  That is what  I initially thought silence suppression was about.
  But then I was told differently.
  It could be applied to TDM.
  If not, then why are we discussing adding silence suppresion to the TDM
package?


  By the way,  I thought TDM-TDM calls are being made at the Gwy too.
  Aren't you guys doing that now?



  Carl Rutter wrote:

    I can't think of an application where you'd want to do that. Silence
suppression really wouldn't make sense for a TDM-TDMwhich is hairpined at
the CO. The DS0 is dedicated. The advantage of Silent suppression it to
limit the RTP traffic on the IP side, which you wouldn't have in that
case.Maybe if you wanted to inject Comfort Noise instead of backgroundnoice
in the TDM-TDM call??Carl
      -----Original Message-----
      From: [e-mail] [mailto:[e-mail]]On Behalf Of
Chuong N. Nguyen
      Sent: Tuesday, April 02, 2002 7:16 PM
      To: [e-mail]
      Subject: Re: [Megaco] Local/Remote descriptors and Permanent
terminations
      Tom-PT Taylor wrote:
        I've had a message pointing out the existence of
        draft-ietf-avt-rtp-cn-05.txt.  Specifying this payload type as well
as G.711
        would indicate the use of silence suppression implicitly.  That
covers RTP
        transport.  For ATM we have the a=silenceSupp attribute defined in
RFC 3108.
        Do we need anything for TDM?

      What if someone wanted to make a TDM-TDM, hairpin call?
      Would silenceSupp be used for such a call?
      If yes, then what?



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--
  Alcatel USA, Inc             Internet: [e-mail]
  1000 Coit Road Plano, Texas 75075           Phone:    [phone]
  **** The opinions expressed are not those of Alcatel USA, Inc ****