[Asterisk-Users] Soft phone vs. Hardware SIP device quality?

[Paul Fielding]

I've been messing with some hardware sip devices and with softphones 
(X-Lite, X-Pro and SjPhone).   Compared to the hardware devices, the 
softphones blow chunks (tm) for sound quality.  the softphones are quieter, 
crackly, and overal more difficult to understand the voice, while a sip 
device at the same location sounds great.

I've tried proprietary softphones (such as Nortel and one other who's name I 
forget) that sound great,  and X-Lite and sjphone are both using the same 
protocol and codecs as the sip devices, so i don't understand what I'm 
missing.

Anyone have any suggestions?

regards,

Paul