Dean Collins wrote:
I've just gotten off a skype conference call and it pisses me off that
the quality of skype is higher than my asterisk calls.
Is there such a thing as a super high bandwidth codec?
Asterisk does not support "wideband" codecs as far as I know. Most
telephony gear expects most calls to be handed at some point by a PSTN
channel (FXO or FXS) or by a VoIP hardphone. The highest bandwidth
those devices support is ulaw or alaw. Hardphones COULD support
wideband codecs, but I don't know of any that actually do.
Of course, if all legs of a call uses a wideband codec, like if you are
only using Softphones, then in theory you could use a wideband codec.
Skype, which until recently didn't even support PSTN or hardphones might
very well use a wideband codec in order to fool users into thinking it's
a better product.
NOTE: CVS-HEAD allows you to specify more options for codecs. SpeeX
might be able to be set for wideband mode, but that won't make much
difference if your hardware/software doesn't support it.
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