I've been trying out the newest X-Lite (Build 1012) with iLBC and speex codecs. If I enable only iLBC _or_ SPX on X-Lite and call the echo-test on my asterisk server, the call connects, but I get no sound. If I enable only iLBC _and_ SPX, X-Lite indicated that it has connected with iLBC, and I hear a weird squawking. My sip.conf contains: allow=iLBC allow=SPEEX allow=gsm I've heard that asterisk and kphone will work together using iLBC. Does anyone else have any interoperability experience? Any ideas on what I should do to debug this?