Also: There are at least two implementations of the g726 codec, i.e. g726 and g726aal2. For this also look at the g726nonstandard setting in sip.conf. It is quite possible that your problem is here.
For quick testing to see if the codec works at all: Configure your phones to do g726 only (so no alaw/ualaw at all). Philipp -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users