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 * The mumble server is commonly used with the celt codec, which has raised various concerns
  * DebianBug:682010

Translation(s): none


Mumble has become popular for voice conferencing within the Debian organisation.

Specific reasons for this popularity:

  • simple to set up (compared to Asterisk or FreeSWITCH)
  • offers good quality multi-person RTP stream mixing from a central server

Concerns:

  • Although Mumble is based on an open protocol, it is not as widespread as other protocols like Jabber and SIP
    • Jabber and SIP users (e.g. with desk phones or Google Talk) can't easily join a Mumble conference
  • In a world where Jabber servers are becoming more widespread, Mumble server (murmur) becomes an extra process that must be supported
  • The mumble server is commonly used with the celt codec, which has raised various concerns

Signaling

To evaluate:

  • which SIP proxies (repro and kamailio) support multi-party call set up?
  • which Jabber servers (e.g. ejabberd) support multi-party call set up?

RTP mixing

Some of the relevant software (maybe not packaged yet):