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  • Voip

    From Brian Rogers@1:142/103 to Tony Langdon on Fri May 21 00:07:00 2021
    Tony Langdon wrote to Brian Rogers <=-

    Cool. Yeah I've been around VoIP too long, where packets are tiny and overheads are big as a result, and you pretty much can't go below
    around 20kbps on the wire, because of the overheads, even if the
    payload is only 2400bps. :)


    I wish VoIP used TCP like IAX instead of UDP/Sip :\


    ... MAC: It does less, It costs more, It's that simple.
    --- MultiMail/Linux v0.52
    * Origin: SBBS - Carnage! (1:142/103)
  • From Tony Langdon@3:633/410 to Brian Rogers on Sat May 22 20:49:00 2021
    On 05-21-21 00:07, Brian Rogers wrote to Tony Langdon <=-

    Tony Langdon wrote to Brian Rogers <=-

    Cool. Yeah I've been around VoIP too long, where packets are tiny and overheads are big as a result, and you pretty much can't go below
    around 20kbps on the wire, because of the overheads, even if the
    payload is only 2400bps. :)


    I wish VoIP used TCP like IAX instead of UDP/Sip :\

    So a dropped packet would cause it to get stuck, until it was replaced? ;) IAX is 4569/UDP (or I've been doing port forwarding wrong for years ;) ). One of the reasons VoIP uses such small packets, is latency. :)




    ... Keep your stick on the ice
    === MultiMail/Win v0.52
    --- SBBSecho 3.10-Linux
    * Origin: Freeway BBS Bendigo,Australia freeway.apana.org.au (3:633/410)
  • From Brian Rogers@1:142/103 to Tony Langdon on Sat May 22 20:39:00 2021
    Tony Langdon wrote to Brian Rogers <=-

    So a dropped packet would cause it to get stuck, until it was replaced?
    ;) IAX is 4569/UDP (or I've been doing port forwarding wrong for years
    ;) ). One of the reasons VoIP uses such small packets, is latency. :)

    Not at all. You just have a better flow. IAX is 4569/TCP however you can use UDP - why is beyond me though. I have 0 jitter on my line *most* of the time
    so I don't have an issue with SIP.

    ... Va va va voom! - Tom dances the hula
    --- MultiMail/Linux v0.52
    * Origin: SBBS - Carnage! (1:142/103)
  • From Tony Langdon@3:633/410 to Brian Rogers on Sun May 23 11:42:00 2021
    On 05-22-21 20:39, Brian Rogers wrote to Tony Langdon <=-

    Not at all. You just have a better flow. IAX is 4569/TCP however you

    Every implementation I've seen uses UDP. Maybe IAX _can_ use TCP, but I haven't seen it used that way.

    can use UDP - why is beyond me though. I have 0 jitter on my line
    *most* of the time so I don't have an issue with SIP.

    Yeah jitter is much lower these days.


    ... Eschew ampersands & abbreviations, etc.
    === MultiMail/Win v0.52
    --- SBBSecho 3.10-Linux
    * Origin: Freeway BBS Bendigo,Australia freeway.apana.org.au (3:633/410)
  • From Brian Rogers@1:142/103 to Tony Langdon on Sun May 23 09:04:00 2021
    Hey Tony;

    Tony Langdon wrote to Brian Rogers <=-

    Every implementation I've seen uses UDP. Maybe IAX _can_ use TCP, but
    I haven't seen it used that way.

    Every one I've seen here stateside uses TCP.

    Yeah jitter is much lower these days.

    Depends on the ISP too... and your pipe.

    ... What is mind? No matter! What is matter? Never mind! - Homer S.
    --- MultiMail/Linux v0.52
    * Origin: SBBS - Carnage! (1:142/103)