[Asterisk-Users] asterisk codec sizes, data plus overhead

Philipp von Klitzing klitzing at pool.informatik.rwth-aachen.de
Fri Dec 5 19:11:21 MST 2003


Hi!

> I have been searching the archives for a simple, clear listing of the 
> available codecs with total size, plus the data and overhead sizes.
> 
> Does anyone have this handy, and can it be added somewhere, even the wiki.

Taken from older postings on this list
Philipp


VoIP Bandwidth calculator
http://www.packetizer.com/iptel/bandcalc.html


Depends on the phone.. If you are using a Grand Stream then the best you 
will get is G.711 (+- 85Kb/s including overheads)..  

If you are using Snom's or X-Lite/X-Pro you have the option to use the 
GSM (+- 34Kb/s including overheads) codec..  

X-Lite/X-Pro also support iLBC (+- 28Kb/s including overheads) although 
it does not currently work with Asterisk, and GrandStream have said they 
are going to support it as well soon..  

All the phones have support for G.729 (+- 22Kb/s) either as standard or 
by buying a sepertate licence.. Including Asterisk.  





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