diff -urN asterisk-1.4.4.orig/codecs/codec_speex.c asterisk-1.4.4/codecs/codec_speex.c
--- asterisk-1.4.4.orig/codecs/codec_speex.c	2006-09-08 17:33:32.000000000 -0400
+++ asterisk-1.4.4/codecs/codec_speex.c	2007-05-14 13:33:14.000000000 -0400
@@ -220,6 +220,7 @@
 		}
 #endif
 		pvt->samples += tmp->framesize;
+		pvt->datalen += 2 * tmp->framesize; /* 2 bytes/sample */
 		return 0;
 	}